วันจันทร์ที่ 31 ตุลาคม พ.ศ. 2554

What is New & Changed in STAAD.ProRevision History for STAAD.Pro

This document is organized in a way that newer revisions appear at the top. 
Therefore, section numbers will keep decreasing from top to bottom. Also refer 
to the What's New section of the Online Help for Major New Features. This 
document outlines fixes and last minute changes. 
Copyright (c) 1997-2011 Research Engineers International, a Bentley Solutions 
Center 
What's New in:-
  STAAD.Pro V8i SS3, Build 20.07.08 ( 16 September 2011) 
  STAAD.Pro V8i SS2, Build 20.07.07 QA&R ( 24 February 2011) 
  STAAD.Pro V8i SS2, Build 20.07.07 ( 13 October 2010) 
  STAAD.Pro V8i SS1, Build 20.07.06 QA&R ( 18 March 2010) 
  STAAD.Pro V8i SS1, Build 20.07.06 ( 23 December 2009) 
  STAAD.Pro V8i, Build 20.07.05 ( 21 May 2009) 
  STAAD.Pro V8i, Build 20.07.04 ( 30 October 2008) 
  STAAD.Pro 2007, Build 03 ( 8 July 2008) 
  STAAD.Pro 2007, Build 02 (14 September 2007) 
  STAAD.Pro 2007, Build 01 (29 June 2007) 
  STAAD.Pro 2006 



1. What's New in STAAD.Pro V8i SS3, Build 20.07.08 ( 16 September 2011)
  (A) Issues addressed in the Analysis/Design Engine (39) 
  (B) Issues addressed in the Pre-Processing Mode (16) 
  (C) Issued Addressed in the Post-Processing Mode (04) 
  (D) Issues Addressed in the Steel Design Mode (00) 
  (E) Issues Addressed in the Concrete Design Mode (01) 
  (F) Issues Addressed in the RAM Connection Mode (09) 
  (G) Issues Addressed in the Advanced Slab Design Mode (02) 
  (H) Issues Addressed in the Piping Mode (00) 
  (I) Issues Addressed in the Editor, Viewer and other modules (02) 
  (J) Issues Addressed in OpenSTAAD (02) 
  (K) Issues Addressed with Printing / Documentation (16) 
  (L) Issues Addressed with Licensing / Security / Installation (01) 
(A) Issues addressed in the Analysis/Design Engine (39) 
A) 01 The BS5950 steel design module has been updated to address a situation 
which can occur when designing multiple members and a member that immediately 
follows a class 4 section and is subject only to tension forces would have been 
calculated with a reduced design strength. 
A) 02 The processing of the wind load intensities has been improved in order to 
trap incorrectly defined height/intensity pairs. 
A) 03 The processing of one-way floor load commands has been updated to improve 
the loading on members loaded from a triangular floor area. 
A) 04 The Eurocode 3 DD (also know as the ENV) version has been removed from the 
program. Note that all European examples have been replaced with designs using 
the equivalent current EN version of the code. 
A) 05 The shear area along minor axis calculation for T sections was previously 
done using the same calculation as for as wide flange sections resulting in 
overvalued minor axis shear areas. Whilst this is un-conservative, it is rare 
that this is the critical aspect of a design. 
A) 06 The analysis engine has been updated to handle the situation where load 
combinations are numbered in excess of 9999. 
A) 07 The Dutch National Annex implementation for Eurocode 3 has been updated 
such that for members in compression if the (axial load / axial capacity) ratio 
is less than 0.15, the check for slenderness is not required and thus no longer 
reported. 
A) 08 The interaction checks in Eurocode 3 EN 1993-1-1 design has been updated 
to address small axial loads. Rather than ignoring the check if the axial load 
over capacity <0.001, the check is avoided if the axial compression in the 
member is < 0.1 kN. 
A) 09 The output of a steel design to Eurocode 3 EN1993-1-1 incorrectly reported 
the steel strength of members assigned a grade using SGR 4, i.e. S460. However, 
the design was performed using this steel strength. 
A) 10 The slenderness calculations in the ASCE 10-97 design code have been 
corrected to include the defined effective length factors. 
A) 11 The IS 800:2007 code check for back to back angles has been updated to 
ensure that the correct sectional area is used when the long leg is back to back 
for non slender or semi-compact sections. 
A) 12 The IS 800:2007 steel design routine for classification of welded UPT 
sections has been updated to use the correct dimensions as outlined in the code 
for a welded profile instead of those of a rolled section with no rolling radii. 

A) 13 The Eurocode 3 steel design EN 1993-1-1 has been updated such that the 
torsional shear stresses used in when TOR 1 is specified now includes the area 
enclosed by the mean perimeter to give a more accurate result than the previous 
method. 
A) 14 The design of columns to IS 456 has been improved so that the correct 
reinforcement layout is reported when using the METHOD parameter. 
A) 15 The property calculation method used for defining the properties of User 
Table General sections defined by polygon profiles has been improved to address 
situations where the properties were being reported with negative values 
resulting in a crash during the analysis. 
A) 16 The clause H.3 checks for a BS590:2000 steel design have been updated to 
ensure that in the case of very small or zero axial load applied to sections 
with slender webs, the correct interaction ratio is reported in the output. 
A) 17 The Canadian steel design code S16-01 has been updated to include a clause 
13.9 check for class 4 slender sections. 
A) 18 The Russian SNiP steel design code was updated to display the co-existent 
forces for the key location for the design. (Note this was addressed in 
20.07.07.32, but not reported) . 
A) 19 The AISC 360-05 steel design slenderness calculation routines have been 
corrected for models with SET Z UP. Previously the slenderness calculations were 
inverting the effective lengths for the major and minor axes. 
A) 20 The EN 1993-1-1 design code has been enhanced with the addition of a new 
MTH parameter in order to allow the choice of clause to use when calculating 
x_LT. EN 1993 allows for two methods to work out XLT as stated in the 
description. Although Cl. 6.3.2.3 in En 1993 deals only with I-Sections, in some 
cases the NA (e.g. UK/French NA) extends this clause to include other sections 
as well. Hence the implementation will allow for three values for the new MTH 
parameter: MTH = 0 (default) : Will use the default method specified in the code 
or the NA based on the section type. So if MTH=0 (or user has not specified 
MTH), the program will default to the method specified by the NA. If the NA does 
not have a preference and it extends clause Cl. 6.3.2.3 to include other 
sections, we will use this clause to work out XLT. 
MTH=1: Will use Cl.6.3.2.2. If the NA extends Cl. 6.3.2.2 we will use the method 
in Cl.6.3.2.2 of the NA, otherwise will use the values in the base code. MTH=2: 
Will use Cl.6.3.2.3. If the NA extends Cl. 6.3.2.3 we will use the method in 
Cl.6.3.2.3 of the NA. If it doesn’t include sections, other than I sections, we 
will issue a warning and set MTH to default value of 0. 
Note that if a National annex has not been specified (i.e.) the base EN 1993 is 
invoked and the user has specified a section other than an I section and used 
MTH=2, we will issue a warning and set MTH to the default value of 0. 
A) 21 The NS 3472 Norwegian steel design code has been updated to include a 
warning to confirm that it does not support designs on models defined using SET 
Z UP. These models should be checked using Eurocode 3, EN 1993-1-1 and the 
Norwegian National Annex as this is the current code. 
A) 22 A warning is produced in the output file if the wind load generator is 
used on models with SET Z UP defined as this is currently not supported. (Note, 
this was previously reported as a Known Issue). 
A) 23 The Australian steel design code AS 4100 has been updated for the shear 
checks on pipe sections to ensure that the correct shear capacity is defined for 
the minor axis. Previously this was under estimated and could produce 
conservative results. 
A) 24 The live load reduction routines used with the FLOOR and ONE WAY loading 
defined in live load cases has been corrected to use the correct units. Note 
would have produced a non conservative result as the reduction would have been 
greater than defined in the UBC/IBC codes. 
A) 25 The Von Mises Stress Checks in the AIJ steel design codes, both 2002 and 
2005 have been updated such that if the loading is defined as Temporary (i.e. 
TMP 1.0) then the allowable stress does not get increased by a factor of 1.5 
which previously produced less conservative results. 
A) 26 The AIJ steel design routine has been updated to produce properly 
pagenated output (ANL) files. 
A) 27 The AISC LRFD 3rd Edition design routine has been updated to correctly 
calculate bending capacities for wide flange sections with top and/or bottom 
cover plates. These sections are treated as non-doubly symmetric sections and 
designed as per Appendix F. Issues with the calculation of the radius of 
gyration of the compression flange and compressive residual stress Fr has now 
been addressed. 
A) 28 The second order analysis of load cases including thermal loads has been 
updated to correctly account for the applied forces internal to the members when 
forming the Kg matrix. Note this was added in 20.07.07.32, but not documented. 
A) 29 The Australian steel design module has been updated such that the 
slenderness check is performed on compression members if the MAIN parameter is 
set to a suitable slenderness limit. Additionally if a slenderness check is 
required on tension members, then set TMAIN to the required limit. 
A) 30 2 Additional parameters, PDITER and REDUCEDEI have been added to the 
Direct Analysis command to control the non linear aspect of this form of 
analysis. Note, these parameters are not supported by the GUI. For more details 
refer to section 5.37.5 of the Technical Reference manual. (Note this was added 
in 20.07.07.32) 
A) 31 The deflection check in the Canadian steel design code S16-01 has been 
updated to ensure that the members are correctly initialised for the defelction 
check. 
A) 32 The parametric modelling routines used in the GUI has been enhanced to 
ensure that the meshes can be created using models where the current length 
units other than those from the base unit systems, i.e. feet and metres. 
A) 33 The IS1893 response spectrum analysis has been enhanced to better handle 
accidental torsion. The TOR parameter has been enhanced with additional optional 
settings of OPP and COU such that the torsional component can be calculated with 
the eccentricity as defined in Cl 7.9.2 and Cl 7.9.2 Note 2 of Amendment No. 1 
January 2005 of IS 1893 (Part 1) : 2002. There are 4 possible settings to 
calculate the design eccentricity, edi = 
= esi + eac*bi (add parameter TOR), 
= esi - eac*bi (add parameter TOR OPP), 
= + eac*bi (add parameter TOR COU), 
= - eac*bi (add parameter TOR COU OPP) 
where, 
esi = dynamic eccentricity arising due to difference between centre of mass and 
centre of rigidity at floor i (static eccentricity multiplied by dynamic 
amplification factor 1.0 for response spectrum analysis), 
eac = extent of accidental eccentricity (0.05 by default, unless not specified) 
bi = floor plan dimension in the direction of earthquake loading 
A) 34 The IS800:2007 has been slightly modified to ensure that the section 
modulus of slender sections is calculated using the correct value of flange 
width which was previously resulting in under estimation of the minor axis 
bending capacity. 
A) 35 The IS800:2007 steel design routine has been updated to correct the 
calculation for defining the effective area of a back to back channel section. 
A) 36 The output reported in the output file by the Basic (not Advanced) 
analysis solver of the loading defined by a Notional Load has been corrected. 
Whilst the actual load created and used was correct, if the command PRINT LOAD 
DATA was used, the load was not reported at the correct locations. 
A) 37 The IS 800:1984 steel design module has been updated for members with high 
compressive stress which are close to or exceeding the Euler buckling load 
resulted in an under-estimated allowable bending stress and thus over estimate 
of the interaction ratio. 
A) 38 The AIJ Steel design modules has been updated to ensure that the value of 
'fa' displayed in the output file is correct for members defined with the TRUSS 
command. Note that the actual design and reported ratios were correct. 
A) 39 The IS893 static seismic routine has been updated such that the reduction 
of base shear due to depth of foundation below ground level defined using the DT 
parameter was being applied to the entire model. Additionally a new parameter GL 
has also been added to directly define the vertical coordinate of the ground 
level to be considered which can be used in place of the DT parameter. 
(B) Issues addressed in the Pre-Processing Mode (16)
B) 01 The Jindal steel section database supplied in STAAD.Pro has been updated. 
B) 02 The dialog box that displays values of materials has been updated to 
ensure that it displays the correct unit for shear modulus. 
B) 03 The Indian section database has been updated to correct the thicknesses 
for PIP1143(L,M,H) profiles. 
B) 04 The British section database has been updated to correct the column header 
for UB, UC and UBP profiles IX, torsional modulus (was shown as DE). Also the 
profiles have been updated to match properties reported by Tata steel. 
B) 05 The GUI handling of creating new views has been improved to ensure this is 
only available when suitable items are selected. 
B) 06 The GUI has been updated to ensure that if a user table has been created, 
but does not contains any data, then this is not saved. Previously this 
situation would cause the application to crash when saving the model. 
B) 07 Hyperlinks to URLs in the STAAD.Pro GUI are now routed through a Bentley 
server. 
B) 08 The GUI has been updated so that channel section outlines (and 3D section) 
which were always being drawn on the basis that the web will be drawn to the 
left of the local 'vertical' axis, without differentiating between the YUP and 
ZUP options, has now been corrected so that channel sections are checked for any 
Z UP option when drawing their outlines 
B) 09 The IBC-2006 Resepoonse Spectrum routine in the GUI used to generate Fa 
and Fv values from either from a zip code, longitude and latitude or specific 
Ss, s1 and site class has been improved. If 0 is entereed for either Fa or Fv, 
then the GUI will calculate and display the values for the given Ss, S1 and Site 
Class 
B) 10 The link on the menu 'Help>Multimedia Help>' has been reinstated. 
B) 11 The GUI has been updated to ensure that a section defined as a tapered 
wide flange can be edited using the option in the Member query dialog box, 
Property page. 
B) 12 The partial labeling function has been updated to better toggle the 
selected labeling option. 
B) 13 The area AX of PIPE sections in the US steel database have been updated to 
be in line the reduced values defined in the AISC 360-05. Note that changing to 
an alternative American Section profile table such as AISCsection_All_Editions 
will use the full section area. 
B) 14 The GUI has been updated for the timber design code Eurocode 5 to display 
and handle the parameter KLEF, the effective length for checking the laeteral 
torsional buckling length. 
B) 15 The GUI has been updated to include the two sidesway parameters, SSY and 
SSZ, for the ASCE 10-97 steel design code which were previously added and 
documented in the International Codes manual. 
B) 16 The GUI has been updated such that design parameters ELA and ELB for the 
ASCE 10-97 steel design code are created with the correct index. 
(C) Issued Addressed in the Post-Processing Mode (04)
C) 01 The Post Processing Mode has been enhanced with the option for selecting 
plates parallel to the global planes which has been available in the Modeling 
Mode. 
C) 02 The post processing mode has been updated to allow the application to 
display the seismic loading defined by the Canadian NRC code which is calculated 
by the analysis engine to be displayed graphically. 
C) 03 The 3D Beam Stress results for models using SET Z UP have been corrected 
as previously these were reporting using the incorrect major/minor section 
modulus. 
C) 04 The STAAD.Pro post processing has been updated such that the beam stresses 
reported for European HE sections are now reported using the correct moments of 
inertia. 
(D) Issues Addressed in the Steel Design Mode (00) 
(None) 
(E) Issues Addressed in the Concrete Design Mode (01) 
E) 01 The ACI 318 concrete slab design routine in the RC Designer Module has 
been improved to address an issue with US/English units not being retrieved when 
a file is re-opened resulting in the incorrect display of units in the brief 
dialog. 
(F) Issues Addressed in the RAM Connection Mode (09) 
F) 01 The Ram Connection mode has been updated such that members defined with 
end releases can also be used as bracing members in a connection design. 
Previously only TRUSS, TENSION only or COMPRESSION only members could be used. 
F) 02 The RAM Connection mode has been updated to ensure that users without a 
valid RAM Connection license can still make use of the limited set of Basic 
templates. 
F) 03 The RAM Connection mode has been enhanced with an updated engine to ensure 
that BCF template does not generate connections with negative bolt edge 
distances. 
F) 04 The RAM Connection mode has been enhanced such that the CBB connections 
can be used to design connections with only columns and braces, i.e. without the 
inclusion of a beam in the connection. 
F) 05 "The RAM Connection design dll has been updated to version 7.2 which 
includes the following 6 changes:- 1) Fix HSS column to base plate weld 
capacity, 2) Fix assigning connection with opposite members, 3) Cap plate 
thickness in data report 4) Fix base plate minimum edge distance, 5) Fix flange 
Plate Whitmore section calculation for HSS, 6) Shear capacity of the anchors 
does not use the 0.6 factor shown in ACI D-20" 
F) 06 The RAM Connection mode has been enhanced to ensure that when the base 
units are set to Metric, the thickness of gusset plates are correctly defined. 
F) 07 The RAM Connection mode has ben enhanced such that if a new analysis is 
performed on a model with connections defined which have been customised, then 
assigning the same connection will maintain the existing defined customisation. 
F) 08 The RAM Connection module creation of base plates with a Smart Baseplate 
template has been improved to avoid un-necessary calculations which were 
resulting in an overly long design step. 
F) 09 The license checking routine in the RAM Connection mode has been updated 
to ensure that the version of RAM Connection license is v7.2 
(G) Issues Addressed in the Advanced Slab Design Mode (02) 
G) 01 The integration of STAAD.Pro to RAM Concept using the Advanced Slab Design 
mode has been improved to address an issue regarding changes of unit system. 
Previously the current unit system was not recorded when a slab was created 
which could result in odd dimensional issues when the slab was re-sent to RAM 
Concept in a future session and there was a different unit system in place. The 
unit system is now stored with the slab definition and a warning is displayed if 
an old model is opened that has slabs defined without a unit system definition. 
G) 02 The Advanced Slab Design Mode routine for creating slabs and walls has 
been improved to ensure that the same value of tolerance is used for both Metric 
and English unit systems. 
(H) Issues Addressed in the Piping Mode (00) 
(None) 
(I) Issues Addressed in the Editor, Viewer and other modules (02)
I) 01 The values of AY and AZ were being swapped when being exported fro m 
Section Wizard Freesketch module into a UPT table 
I) 02 The CIS/2 translation module has been updated to imporve the method used 
for identifying countries of named profiles. 
(J) Issues Addressed in OpenSTAAD (02) 
J) 01 OpenSTAAD has been updated to include a function to report the defined 
category of a load case. Load.GetLoadType which takes one parameter of the load 
case and returns the load type. See the OpenSTAAD help for full details. 
J) 02 The OpenSTAAD API has been updated to better handle the creation of 
supports with spring definitions. 
(K) Issues Addressed with Printing / Documentation(16) 
K) 01 The user report table of finite element principal stresses has been 
updated to ensure that the correct values are reported. 
K) 02 The Eurocode 3 EN 1993-1-1 documentation has been updated to indicate the 
correct default BEAM parameter 
K) 03 The verification problem for the Japanese AIJ 2005 steel design code has 
been updated to show the correct steel strength and thus ratio. 
K) 04 The Eurocode 3 EN 1993-1-1 online help has been updated to clarify the 
calculations used in the determination of the value of x_LT 
K) 05 The European steel design section of the International Design manual has 
been updated to provide a more detailed explanation to the implementation 
provided by STAAD.Pro 
K) 06 The Eurocode 3 steel design EN 1993-1-1 section of the International 
Design Codes manual has been expanded with more detailed explanations of the 
theories and methods used in the design calculations. 
K) 07 The Pushover Analysis module help documentation has been updated with 
clearer references to the FEMA 356 documentation used in the development of this 
module. 
K) 08 In order to aid cross referencing different sections of the online help, a 
large number of hyperlinks have been added. 
K) 09 The OpenSTAAD online documentation has been updated with the examples 
being based on the current OpenSTAAD Application object (rather than the older 
and less comprehensive OpenSTAAD Results object). Additionally a number of the 
functions added to the Application object are also documented. 
K) 10 Section 2B.8 of the International Codes manual has been updated clarifying 
the scope of the section profiles that can be designed using the BS5950-1:2000 
design code. 
K) 11 Section 5.31.2.13 of the Technical Reference Manual 'IBC 2006 Seismic Load 
Definition' has been updated to correctly refer to the importance factor as I, 
not IE as previously refernced. 
K) 12 The BS5950:1990 documentation has been withdrawn as this code is no longer 
supported. The BS5950:2000 or EN1993-1 codes should be used instead. 
K) 13 The Technical Reference manual section 1.18.3.3 has been updated regarding 
composite damping. 
K) 14 The ASME NF steel design documentation has been updated to clarify that 
the input parameter FYLD represents the 'Steel yield strength at temperature' 
and the input parameter FU represents the 'Steel ultimate tensile strength at 
temperature'. 
K) 15 The example in the OpenSTAAD online documentation has been updated to 
correctly indicate that SetMaterialID is a function of the Property Object. 
K) 16 The online help for the steel design code N690-1984 has been updated to 
clarify that the compressive strength calcuated for members which slenderness in 
excess of 120 is defined as 12 - (KL/r)/20. Note the calculations performed by 
the program used this equation. 
(L) Issues Addressed with licensing / security / installation (01)
L) 01 The GUI has been updated to ensure that the Canadian/Australian/SA license 
allows access to the RC Designer mode. 



2. What's New in STAAD.Pro V8i SS2, Build 20.07.07 QA&R ( 24 February 2011)
  (A) Issues addressed in the Analysis/Design engine (42) 
  (B) Issues addressed in the Pre-Processing Mode (28) 
  (C) Issued Addressed in the Post-Processing Mode (10) 
  (D) Issues Addressed in the Steel Design Mode (01) 
  (E) Issues Addressed in the Concrete Design Mode (03) 
  (F) Issues Addressed in the RAM Connection Mode (03) 
  (G) Issues Addressed in the Advanced Slab Design Mode (02) 
  (H) Issues Addressed in the Piping Mode (0) 
  (I) Issues Addressed in the Editor, Viewer and other modules (06) 
  (J) Issues Addressed in OpenSTAAD (01) 
  (K) Issues Addressed with Printing (02) 
  (L) Issues Addressed with licensing / security / installation (0) 
(A) Issues addressed in the Analysis/Design engine (42) 
A) 01 The AISC 360-05 design module for tapered sections and those defined as I 
sections in a UPT has been updated to improve the calculation of the equal area 
axis used in the calculation of the plastic modulus and thus the capacity 
BEND-Z. The previous results were conservative. 
A) 02 The EN1993 steel design module has been imporoved for angle section 
design. For class 4 sections the basic elastic section modulus was being used in 
place of the effective section modulus of the class 4 section. 
A) 03 The EN1993 steel design module has been updated to correct the calcuation 
of eqn 6.2 when the parameter ELB was set to 1. The value of Nrd in equation 6.2 
ratio calculation should use the section capacity but was using the buckling 
capacity, which produced conservative results. 
A) 04 The NORSOK N004 design code has been updated to correct the calcuation of 
Qu for axial force which was being calculated the axial force being applied in 
the opposite direction, i.e. For compression when the member was in tension and 
visa versa. 
A) 05 The analysis engine has updated the calcuations in the IBC 2006 seismic 
loading to handle situations where the calculated upper limit of Cs is below the 
lower limit of 0.01. 
A) 06 The Australian concrete code has been updated to ensure that the correct 
load case is reported in the Member Query dialog for beam and column members. 
A) 07 The AISC 360-05 deflection check has been updated to esure that the 
correct length over deflection check is performed. 
A) 08 The Eurocode 3 steel design has been updated for user defined class 4 
sections. While calculating the moment reduction factor, the "effective" 
section's moment of inertia was being used instead of its section modulus. This 
gave rise to incorrect reduction factors and hence a low value for the LTB 
moment capacity. 
A) 09 The Australian concrete batch design ouptut sketch for AS3600 has been 
updated to correctly report the governing load case and reinforcement sketch. 
However, it is strongly recommended to use the more comprehensive AS3600 design 
module in the Concrete Design mode. 
A) 10 The Direct Analysis routine has been improved for situations where the 
DEFINE DIRECT ANALYSIS option includes the setting of NOTIONAL LOAD >=0.0029 
which indicates that an iteration on tau_b is not required and that not all 
members are defined as their flexural stiffness as being significant. Whilst the 
anayisis and defelctions were being reported correctly, the end moments were not 
always correct. 
A) 11 The output report for an IS456 concrete design has been updated to support 
displaying larger numbers which previously would be displayed as **** 
A) 12 The EN1993 steel design routines when including the Netherlands National 
Annex have been improved. Previously the additional clause check for Cl.6.3.3 
(and hence the NEN C.l 12.3.1.2.3) was being done for all cases of axial 
compressive load. This check should only be done in case of combined axial and 
bending loads. This issue has been rectified and a check has also been included 
to ignore this check if the bending moments are very small when considering the 
combined axial + bending condition. 
A) 13 The routines for calcuating the centre of mass when using a response 
spectrum defined as either IS1893 or Eurocode 8 have been improved to address 
situations where no global Y loading has been defined, which is the basis on 
which centre of mass is calculated, and the program will attempt to use global X 
or Z loads instead. In the load to mass conversion, this occationally resulted 
in very small global Y masses being created and thus these were used as the mass 
model. 
A) 14 The AISC 360-05 steel design module has been updated to use the member 
defined Youngs Modulus in calculating the compression capacity rather than the 
fixed value of 29000 ksi. 
A) 15 The AISC ASD design routine for channels bent about their major axis has 
been updated to make use of equation (F1-8). 
A) 16 The AISC 360-05 design routines have improved to include the calcuation of 
Cv as determined in Chapter G, section G2, using all three equations (G2-3), 
(G2-4) and (G2-5). 
A) 17 The batch processing Chinese steel and concrete designs have been 
withdrawn and more comprehensive design solutions provided. SSDD for steel 
design and the Concrete Design Mode. 
A) 18 The BSK99 design code has been updated to ensure that the results are 
always displayed in KNs and Metres. 
A) 19 The DIN 1880 steel design code has been updated to ensure that the 
classification of User Defined Wide Flange sections are checked and the overall 
section is classified appropriatly. 
A) 20 The ACI 318-05 design module in the batch processing mode has been updated 
to ensure that the minimum requirements are met including the provision of 
clause 10.5.3. 
A) 21 The analysis engine has been updated to ensure that if a PEFRORM DIRECT 
ANALYSIS is included for some load cases and some other form of analysis for 
others, the DIRECT ANALYSIS does not affect the results generated of the other 
load cases. 
A) 22 The AISC 360-05 design code has been updated to ensure that when the minor 
axis plastic property is used in the calculations for wide flange section, the 
full plastic property is used. 
A) 23 The legacy European database has been updated with the correct column 
heading for IX and IY for IPN sections. 
A) 24 The GNL analysis has been updated to save the transverse shear and bending 
moments at the centre of plates in addition to the three inplane forces 
previously saved during the analysis. 
A) 25 The Canadian steel design code has been updated to ensure that if tension 
only members are defined with self weight loading which theoretically can induce 
compression loading, this is not used to trigger the slenderness checks for 
compression members. 
A) 26 The AISC 360-05 design code has been updated to ensure that the moment for 
the correct axis is reported in the CL.F-Minor data section of the output. The 
calcuations were done useing the correct values. 
A) 27 The design modules have been updated to ensure that section profiles that 
included either '(' or ')' in their section names were treated as valid section 
names which was a particular problem in the aluminium section design where some 
standard tables included these characters. 
A) 28 The IS3920 code has been updated to ensure that the calcuation of EUDL is 
correctly noteably when the SELFWEIGHT command is assigned to a member list and 
the GLD parameter is used. 
A) 29 The processing of USER TABLE wide flange sections defined with a composite 
flange has been updated to ensure that the additonal self weight resulting from 
the additional flange is accounted for. 
A) 30 The AIJ steel design module version 2002 has been updated to ensure that 
this is the reported version in the output file. 
A) 31 The analysis engine has been updated to include a warning in the output 
file if a SELFWEIGHT load command and assigned to a list of members as a note to 
the user to check that the list includes the actual range of members required. 
A) 32 The IBC 2006 calcuations have been improved for metric models. The 
calcuation of Ct has been updated to ensure correct unit conversion using 
Ct(english) = Ct(metric)*(100/(2.54*12))^x where x is the supplied exponent. 
A) 33 The Indian concrete design code IS3920 has been updated to ensure that if 
a combined member (defined using the COMBINE command) is designed followed by an 
un-combined member, the program did not correctly consider the effective UDL on 
un-combined members. 
A) 34 The GUI has been updated to correctly display floor load commands which 
have been assigned using the XRANGE option. Additionally, the analysis engine 
has also been updated to ensure that the correct members have been loaded when 
the XRANGE option has been used with the FLOOR command. 
A) 35 The Canadian steel design module CSA S16-01 has been updated such that the 
moment of resistance of beams subjected to axial tension and bending is reported 
to either equation 13.9a or 13.9b as necessary. 
A) 36 The wind loading routines have been improved to ensure that wind loading 
on open structures can be limited to a section of the model using a member list. 

A) 37 The wind load generation routines have been updated to prevent the 
creation of additional loading resulting from smaller wind panels being defined 
which are subsets of larger panels. 
A) 38 The EN1993-1-1:2005 module has improved the torsion calcuations when the 
value of (z/a) is very large which would report clause 6.2.7(1) as having a 
result of ***** 
A) 39 The BS5950-5 cold formed steel design module has been updated to ensure 
that the slenderness calculation uses the correct effective length and the 
equation to calculate the critical buckling moment (cl. 5.6.2.2) has been 
updated. Additionally, the output has been updated to ensure that the shear 
capacity is included. 
A) 40 The Norwegian NS3472 design module has been updated to support European 
CHS, SHS and RHS sections as well as the tubular sections TUBE and PIPE 
previously supported. 
A) 41 The SNiP steel design routine has been updated such that the output 
reported when the critical check is axial (i.e. tension or compression), only 
the axial force was included. The moments were shown as zero. 
A) 42 The Chinese steel and concrete design modules have been removed from the 
analysis processing engine. Concrete design is maintained with the Concrete 
Design Mode and steel design with the SSDD application. 
(B) Issues addressed in the Pre-Processing Mode (28) 
B) 01 The STAAD.Pro GUI has been updated to better handle files that have errors 
included. If the file has been opened in a STAAD.Pro session that has been used 
to open and view a number of files, then attempting to open a file which has had 
errors that have been fixed in the Editor could cause the GUI to crash. 
B) 02 The GUI has been updated to ensure that it makes use of the unit fields 
defined in the section database files (i.e. *.MDB) when scaling the sections in 
the GUI. Note the engine and thus the analysis made use of these appropriately 
and thus this did not effect the results. 
B) 03 The GUI has been updated to better handle old versions of ProjectWise and 
ensure that the GUI does not crash if attempting to use old ProjectWise 
installations. The STAAD.Pro integration with ProjectWise requires a version of 
08.11.07.00 or greater 
B) 04 The GUI has been updated to ensure that it can support the correct 
allowable range of values for the EN1993 steel design parameter ELB. 
B) 05 The GUI has been updated to improve the handeling of IBC 2006 data to 
ensure that when a file is opened with IBC 2006 load data which is displayed in 
the load edit dialog, the correct Site Class is displayed. 
B) 06 The Jindal database has been updated with additional sections available 
from Jindal. 
B) 07 NBC 2005 combination rules added to the Auto Load Generator 
B) 08 The hydrostatic plate loading routine has been enhanced to allow plates to 
be loaded where the definition of the loading is negative. 
B) 09 The GUI has been updated to ensure that when Reference Loads are defined, 
the file is saved with UNIT commands in the correct location. 
B) 10 The GUI has been updated to ensure that it correctly reads a file with 
Algerian siesmic load data (RPA). Whilst this would analyse correctly, if the 
file was re-saved from the GUI, the weight associated with the siesmic data was 
not saved correctly. 
B) 11 The GUI has been updated to ensure that when a Eurocode 8 response 
spectrum is defined, the values displayed in the loading dialog are in the 
current units, not just in m/s2 which was previously done. 
B) 12 The cold formed steel design module BS5950-5 has been updated to include 
the LTB capacity of sections in the TRACK 2 output. 
B) 13 The GUI has been updated with a data check for when uniformly distributed 
loads have been defined with an explicit start and end position as 0.0. 
B) 14 The GUI has been updated to handle Response Spectrum commands which 
include the MIS 0 parameter. This indicates that the missing mass should be 
accelerated at the frequency specified by the ZPA paramater, or 33Hz if ZPA has 
not been specified. Previously if MIS 0 was included in the file and resaved 
from the GUI, this command was removed. 
B) 15 The timber design parameter list in the GUI for Eurocode 5 has been 
updated with KLEF and SERV removed as these were not implemented and produced 
warnings if used in the file. 
B) 16 The GUI dialog for the Algerian siesmic code has been updated to correctly 
display the label of 'Structural Quality Factor' which was previously shown as 
'Importance Factor' 
B) 17 The GUI has been updated to correctly handle deletion of user created 
orthotropic 2D materials. 
B) 18 The Member Query dialog has been updated to display the torsion inertia IX 
for wide flange sections recorded in the database rather than being calculated 
based on the basic shape dimensions as done previously. 
B) 19 The angle section table in the Canadian steel section database has been 
updated so that the radius of gyration is that of the principal axes, not the 
geometric axes which were previously included. Although the actual vlaues used 
by the program are internally calculated and not acfected by the values shown in 
the tables. 
B) 20 The GUI has been updated to better handle 'Partial Surface Trapezodial 
Loads'. Once defined, if a load is edited by double clicking on it in the Loads 
dialog, the data is correctly loaded and saved from the dialog. 
B) 21 The AISC Tube database has been updated to correctly include the plastic 
modulus in the minor axis. This did not cause a problem as this value is not 
used in the analysis or design modules. If needed, the plastic moduli are 
calculated based on the section dimensions. 
B) 22 The Floor Load generation routine has been improved to ensure that when 
closed loops of beams are identified, they do not contain smaller loops which 
are loaded seperatly. 
B) 23 The Section Profile Tables dialog has been updated to ensure that if a 
wide flange section is selected and a double profile (D) option is selected, 
then the defintion and edit box to allow the spacing to be defined is activated. 

B) 24 The GUI file reading routine has been updated to ensure that it correctly 
recognises the FLOOR HEIGHT command as used in the IS1893 siesmic analysis. 
B) 25 The GUI has been updated to maintain the graphical view when changing 
between pages when practical rather than reseting settings such as the zoom that 
may have been set. 
B) 26 The GUI has been updated such that if a new material is assigned to a 
model such that any previously assigned material is no longer assigned on the 
model, the command line assigning the material is fully removed. The definition 
is not removed. 
B) 27 The GUI has been updated to ensure that macros which are added to the User 
Tools menu are displayed in the toolbar. 
B) 28 The dialog box that allows the selection of entities by a range 
perpepdicular to the global planes has been updated to ensure that the correct 
length unit that will be used is displayed. 
(C) Issued Addressed in the Post-Processing Mode (10)
C) 01 The recent enhancement with the Response Spectrum command that allowed 
additional load cases to be created based on the mode shapes has been updated to 
ensure that the GUI is kept current with the created load cases if there are 
changes made to the starting load case number and the analysis re-run. 
C) 02 The post processing display of time history displacements have been 
updated to better handle metric units . 
C) 03 The post processing reporting of beam relative displacements has been 
improved to ensure that the values are correctly converted from global to local 
axes systems. 
C) 04 The GUI post processing module has been updated to ensure that the element 
results reported for elements which have been made inactive are reported as 
zero. Note that the results reported in the output file were correct. 
C) 05 The post processing display of nodal displacements of models with Eurocode 
8 response spectra has been corrected to display the maximum displacements 
(which were previously displayed as zero). 
C) 06 The AISC ASD design routine has been updated to correct a recent 
modification which resulted in the allowable stress reported in the Member Query 
dialog not being displayed correctly. The correct value was being used in the 
design and printed in the output file. 
C) 07 The FLOOR LOAD GENERATOR routine has been improved to deal with situations 
where all the nodes of a selection do not all lie in a plane. The tolerence was 
set as 1mm. This can now be controlled using a new SET command, namely SET FLOOR 
LOAD TOLERENCE f, where f is the tolerance in the current length unit. This SET 
command can be located anywhere in the input file before the loading although 
GUI (COMMAND -> Miscellaneous -> Set Floor Load Tolerance) will put it at the 
top of the input file between the STAAD and JOINT COORDINATE commands. 
C) 08 The routine for calculating the Transfer forces has been updated to ensure 
that the values that are reported ar in the current units. Previously the force 
would have always been in Kip units. 
C) 09 The Post Processing module GNL graph tool has an option to 'Limit Maximum 
Load Step for Graph' which displayed the incorrect message if an inappropriate 
load case was selected to display. 
C) 10 The Post-Processing of the DD ENV 1993-1-1 has been improved so that the 
correct headings for MCZ (major axis moment capcity) and PC (compression 
capacity) are displayed in the Member Query dialog box on the Steel Design 
sheet. 
(D) Issues Addressed in the Steel Design Mode (01) 
D) 01 The Steel Designer Module BS5950-1:2000 design module has been updated to 
ensure that members which are not over utilised are not displayed as UNSAFE. 
(E) Issues Addressed in the Concrete Design Mode (03) 
E) 01 The RC Designer module has been updated to ensure that design codes that 
used a shared DLL for passing section data which included IS456, BS8110 and CP65 
are able to so. 
E) 02 The ACI 318-05 design module in the Concrete mode has been updated to 
correct the printout details for bi-axial moments which were those based on the 
EC2 2004 code, so both the nomenclature for the capacities and moments, and the 
printed values were wrong. The Pass/Fail ratios were correct however. This is 
now changed to use the correct terms and to show the capacities and moments in 
the correct units. The value of Phi used is also added to the printout. 
E) 03 The AIJ Beam Brief in the RC Designer mode has been updated to ensure that 
if a negative concrete strength is defined it does not cause the application to 
crash. 
(F) Issues Addressed in the RAM Connection Mode (03) 
F) 01 The RAM Connection module has been updated such that it can handle base 
plate designs with columns which have defined beta angles in excess of 180 
degrees. 
F) 02 The RAM Connection module has been updated to ensure that if the loadcases 
to be considered in a design are modified these are correctly accounted for if a 
connectin is re-designed. 
F) 03 The beam splice connection in the RAM Connection module has been updated 
to ensure that the connection can be assigned to members that are correctly 
co-linear. 
(G) Issues Addressed in the Advanced Slab Design Mode (02) 
G) 01 The Export of a slab to RAM Concept has been updated to address a unit 
change issue. If a model was created and exported, then the base unit system is 
changed and the model re-eported, the revised model did not correctly reflect 
the change in unit system. This has now been addressed. 
G) 02 The RAM Concept export routine has been improved to ensure that columns 
that are defined with a local X axis pointing in the positive global Y axis and 
a beta angle are rotated correctly in RAM Concept. 
(H) Issues Addressed in the Piping Mode (0) 
(none) 
(I) Issues Addressed in the Editor, Viewer and other modules (06)
I) 01 The Editor has been updated to correct a command parameter error when 
processing files with a list of plate elements identified with the MEMB string 
which was incorrectly being reported as an error. 
I) 02 The OpenSTAAD documentation has been updated to clarify that functions 
such as Output.GetOutputUnitForDisplacement return the string of the labels used 
for displaying the results in the GUI. 
I) 03 The IS800 Technical Reference manual has been updated to correctly list 
the available design parameters. 
I) 04 The OpenSTAAD documentation has corrected the information that indicates 
that the parameters assigned to the Results Object function GetMemberIncidences 
should be of type Long, not Integer. 
I) 05 The CIS/2 import module has been updated to better handle STP models that 
have been defined with both numeric and alpha numeric references. If the member 
number is defined in the STP file, then this is used, however, if a text string 
is used to reference the member then STAAD will allocate a member number. If 
later in the file a member is defined with a member number this could cause a 
problem. Now STAAD will read in all the member definitions before allocating 
member numbers. 
I) 06 Details of design codes supported by STAAD.Pro have been added to the 
online help in the Welcome section. 
(J) Issues Addressed in OpenSTAAD (01) 
J) 01 The OpenSTAAD function AreResultsAvailable has been updated to ensure that 
it returns the correct status 
(K) Issues Addressed with Printing (02) 
K) 01 The User Report routine has been updated to ensure that it handles the 
temporary situtation when all items have been removed from the report setup 
prior to adding new items for the report. Previously this condition when there 
wer no included items could cause the program to crash. 
K) 02 The releases table in a user report has been updated to identify the 
directions which are free and have spring connections defined. 
(L) Issues Addressed with licensing / security / installation (0)
(none) 



3. What's New in STAAD.Pro V8i SS2, Build 20.07.07 ( 13 October 2010)
  (A) Issues addressed in the Analysis/Design engine (54) 
  (B) Issues addressed in the Pre-Processing Mode (16) 
  (C) Issued Addressed in the Post-Processing Mode (7) 
  (D) Issues Addressed in the Steel Design Mode (2) 
  (E) Issues Addressed in the Concrete Design Mode (7) 
  (F) Issues Addressed in the RAM Connection Mode (4) 
  (G) Issues Addressed in the Advanced Slab Design Mode (0) 
  (H) Issues Addressed in the Piping Mode (0) 
  (I) Issues Addressed in the Editor, Viewer and other modules (14) 
  (J) Issues Addressed in OpenSTAAD (1) 
  (K) Issues Addressed with Printing (12) 
  (L) Issues Addressed with licensing / security / installation (3) 
(A) Issues addressed in the Analysis/Design engine (54) 
A) 01 Eurocode 3 steel design has been improved to allow design of the newer 
European hollow databases sections and US HSS database sections. 
A) 02 The GUI has been updated to handle the DIRECT ANALYSIS parameter 
REDUCEDEI. 
A) 03 The display of the progression of an analysis has been improved so that 
the time steps reported can be viewed clearly. 
A) 04 The output report for IS456 column designs have been improved so that the 
design axial force for large forces is displayed better. 
A) 05 The routine for extracting data from the French tube database sections for 
design has been improved. 
A) 06 The output report for combined stresses of unsymmetrical sections has been 
improved. The stresses are now based on the calculations using the modulus in 
each direction rather than a single most onerous modulus in each axis. 
A) 07 The Canadian concrete design module CSA A23.3-94 has been updated to 
report the correct spacing of bars in the output. 
A) 08 The Australian AS4100 steel design module has been updated to make a small 
improvement in the calculation of the ALM parameter using clause 5.6.1.1-(III) 
A) 09 The analysis engine has been updated to process smaller loads than 
previously handled. In order to prevent unit conversions introducing small 
unwanted effects very small loads are not processed. This level has been lowered 
to 0.0000001 kips/inch (approximately 0.0175127 N/m) 
A) 10 The DIN 1880 steel design module has been updated to ensure that the 
torsional shear stress of angles is correctly calculated as (Mx/It)*t. 
A) 11 While performing a small delta type analysis (in both PDELTA and DIRECT 
ANALYSIS), the section moment due to tension and the section displacements due 
to shear/bending are added to the moment diagram, if small delta is selected. 
There is no iteration performed for this step 
A) 12 The PDELTA analysis routines have been improved to better handle the 
P-small delta effects that occur in tensile members which also include releases. 

A) 13 The PDELTA analysis has been updated to ensure that if during an iteration 
a member is found to have buckled, then output diagram in the Post Processing 
will display the members original moment diagram rather than that including the 
P-Small Delta effects which diverge towards infinity. 
A) 14 The output report from a DIRECT ANALYSIS has been enhanced to add 
additional information such as the critical location in the analysis in order to 
assist the user to further investigate. 
A) 15 The analysis engine has been updated to better handle the Eurocode 8:2004 
Response Spectrum. Whilst the base shears were calculated correctly, the forces 
were not being distributed to the floors thus resulting in no displacements. 
A) 16 The AISC 360-05 steel design module has been updated to improve the 
circular hollow pipe member design. The forces/moments in each of the members 
local axes are resolved into an equivalent forces/moment and the member designed 
for those which may result in more efficient designs. 
A) 17 The Australian AS4100 steel design module has been updated to ensure that 
if the BEAM 1 parameter is specified (i.e. at the ends only), and Alpha M is to 
be calculated automatically (i.e. not specified with the ALM parameter), this is 
calculated correctly with the intermediate moments along the beam length. 
A) 18 The Canadian steel design CSA S16-01 has been improved to ensure that MRZ 
and the compressive strengths are reported in the output file. 
A) 19 The Australian steel design module AS4100 has been updated to correctly 
display the values of Ncz, Ncy, Nciz and Nciy 
A) 20 The Australian steel design module AS4100 has been updated to improve the 
calculation of Alpha M 
A) 21 The Australian steel design module AS4100 routines have been updated to 
ensure that un-initialised variables are accounted for. 
A) 22 The Australian steel design module AS4100 has included a check to ensure 
that a user entered value of Alpha M is not greater than the code limit of 2.5 
A) 23 The Eurocode 3 steel design EN1993-1-1 has been updated such that for 
members subject to an axial load and bending moment, the program used to skip 
the axial load/ axial capacity check. If the axial load is compressive, this 
will be fine since the combined condition will be critical. However if the axial 
load is tensile, we now to do the axial load/axial capacity check as well, 
before we do the combined axial + bending check 
A) 24 The Eurocode 3 steel design EN1993-1-1 module has been update when 
checking members with biaxial bending moments. Previously it only performed the 
interaction check as per equation 6.41. Now the member is also checked for the 
bending capacities separately as well as the combined check. 
A) 25 The output of members designed to the Indian steel design code IS800:2007 
has been updated for members who cannot be designed as they are classified as 
slender and outside the scope of the current module. Previously additional 
checks may have been performed which may have classed the section as other than 
slender and thus led to confusion. 
A) 26 The GENERATE FLOOR SPECTRA command has been updated to handle situations 
where nodes are defined in multiple groups. This is incorrect and reported with 
a warning in the output file. 
A) 27 The Eurocode 3 steel design EN1993-1-1 has improved the calculations for 
the design of slender tee sections. 
A) 28 The German steel design module DIN 18800 has been updated to ensure that 
if a parameter block contains a PY parameter assigned to some members, other 
members which have not had PY assigned are allocated their steel strength from 
the SGR parameter. 
A) 29 The AIJ steel design module output has been updated to ensure that the 
axial force direction is correctly reported in a TRACK 3 output. 
A) 30 The BS 5950 steel design module was modified in the last release to ensure 
that when calculating the interaction ratio for clause 4.8.3.3, when the axial 
load was extremely small the ratio was occasionally over estimated by using a 
larger axial load than was required. 
A) 31 The Eurocode 3 steel design EN1993-1-1 has been enhanced with 2 new 
additional parameters ALPHA and BETA in assisting to specify the requirements in 
equation 6.41. See the International Design Codes Manual for full details. 
A) 32 The Australian steel design module AS4100 has been improved to address an 
issue which occurred if a member that was being designed was assigned BEAM 0 
(i.e. design only for the end moments) and ALM 0.0 (i.e. automatically calculate 
AlphaM based on the moment profile). This would cause the calculation of the 
AlphaM value to fail. In this situation, AlphaM will not be calculated based on 
the moment profile, but will be assigned the value 1.0. If an automatic 
calculation of AlphaM is required, then BEAM 1.0 must also be specified. 
A) 33 The standard analysis engine has been updated to better handle load cases 
which included both notional loads and a bandwidth reduction during the 
analysis. This issue was not present in models when a bandwidth reduction was 
not required or when using the Advanced Analysis engine. 
A) 34 In order to prevent getting huge displacements in a beam member minor axis 
due to small delta effects in a P-Delta or Direct analysis when there are no out 
of plane shears or moments (generally caused when axial compression in the 
member exceeds Pcr), a limit for the section displacements has been added as a 
new command SET DEFLECTION CUTTOFF f1 (where f1 is a limit in the current length 
units) which turns small delta calculations off for members for which the 
specified section displacement is smaller than the value defined for the 
parameter. This command should be added in the STAAD file after the first UNIT 
command, but before the start of the JOINT COORDINATES. If the absolute value of 
the maximum section displacement is less than f1 after 2 iterations; then it is 
converged. The assumption is that out of control, diverging, minor axis 
displacement will not occur until after 2 iterations. 
A) 35 The FLOOR LOAD routines have been improved to better handle situations 
where the members included can define closed loops with concave edges which are 
excluded from the FLOOR LOAD command and thus should not be loaded. 
A) 36 The design routines in STAAD.Pro have been enhanced to allow sections 
defined in the Russian STO ASChM to be chosen by a design using the SELECT 
MEMBER command. 
A) 37 The analysis engine has been updated so that if a SELF WEIGHT command is 
assigned to a finite element then this is maintained even if the specification 
IGNORE (INPLANE) STIFFNESS has also been assigned to that element. Previously, 
the IGNORE (INPLANE) STIFFNESS command would mark these elements as having no 
mass/weight. 
A) 38 The reduced moment capacity for steel designs performed to the Eurocode 3 
EN1993-1-1 has been updated to correctly calculate the reduction factor for the 
yield stregth as per clause 6.2.8 
A) 39 The BS 5950 steel design module has been updated for designing wide flange 
sections with cover plates with a revised method for calculating the torsion 
constant. 
A) 40 The AISC 360-05 steel design module has been updated to correct the 
calculation for the span/deflection value (dff) for a member that is code 
checked after its property has been changed with a MEMBER SELECTION command. 
A) 41 The Eurocode 3 steel design EN1993-1-1 has been updated in calculating 
NcrTF which uses the formula in NCCI SN 001a to ensure that the sign of the 
result is correctly assigned. 
A) 42 The Eurocode 3 steel design module has been updated to allow correct 
design of double channel sections. 
A) 43 The Eurocode 3 design of RHS and SHS class 3 sections has been imporved in 
the calculation of the effective section properties used in the design. 
A) 44 The AISC 360-05 design has been improved for designs on built up wide 
flange sections (indicated with the STP 2.0 parameter) in that in now calcuates 
using the values as per clause G2.1(b). Previously it has been using the values 
from clause G2.1(a) 
A) 45 The AS4100 steel design module has been improved in that any values of KY 
and KZ if not defined as integers were being truncated to integer values. 
A) 46 The ACI 318 concrete batch design routine has been updated with 2 changes 
to the implmentation of clause 11-18 in section 11.6.3. 1) In the right hand 
side of that equation, instead of calculating Vc/(bw*d), STAAD was doing Vc/bw*d 
(without the parentheses) which is equal to (Vc*d)/bw. 2) In calculating 
effective depth, x1, y1, etc., the program was not subtracting the stirrup 
diameter from the total depth. 
A) 47 The Eurocode 3 EN1993-1-1 design code has been updated to correctly 
calcuate the reduced moment capcity of sections under high shear where it is 
considered in an applied moment/reduced moment capacity context. 
A) 48 The Eurocode 3 EN 1993-1-1 design has been updated to ensure that the 
parameter ZG is correctly initiated, if not specifically defined, when needed 
for calculating Mcr. 
A) 49 The Eurocode 3 EN1993-1-1 design has been updated to allow designs of 
large models which would have perviously casued the application to crash. 
A) 50 The steel design code EN 1993-1-1 has been updated with a new design 
parameter (ELB) that can be used to include the combined axial + bending checks 
as per equation 6.2. ELB parameter will accept either a value of 0 or 1. By 
default ELB will be set to 0. ELB = 0 : Combined axial load + bending check as 
per Cl 6.2.9 (default) ELB = 1 : Check as per eqn 6.2. Note that even if ELB is 
set to 1, we will still work out the reduced moment capacity of the section due 
to the axial load and report it, but will check for interaction using equation 
6.2 rather than equations in Cl 6.2.9. 
A) 51 The AISC 10-97 design code module for transmission towers has been 
enhanced to support the design of HSS tubular sections. Note this update was 
implemented in 20.07.05. 
A) 52 The DIN 18800 steel design module has been updated such that previously 
the compressive capacity of a cross section was being worked out using a 
non-dimensional slenderness based on 93.9 x epsilon. The term 93.9 x epsilon is 
based on an E value of 210000 N/mm2 (as stated in the code). The procedure has 
been updated so that the non-dimensional slenderness will be calculated using 
the following equation that allows for the elastic modulus as well as the yield 
strength of steel used:- lambda_1 = PI*SQRT(E/fy) 
A) 53 The Eurocode 3 EN1993 steel design module has been updated to ensure that 
the correct curve is selected if a built up flange has a flange thickness of 
exactly 40mm. 
A) 54 The calculated reduced moment capacity equations for CHS sections as per 
eqn 5.34 of DD ENV EN 1993 has been updated to use the material safety factor 
correctly. 
(B) Issues addressed in the Pre-Processing Mode (16) 
B) 01 The GUI has been updated to better display the 3D representation of 
General profile sections in the 'Section Outline' or 'Full Section' options of 
the Structure>Diagrams dialog. These were previously not always being located at 
the profile centroid. 
B) 02 The export of finite element models using the 2D DXF routine has been 
improved to support both triangular and quadrilateral plate elements. 
B) 03 The GUI has been updated to improve the ability to apply trapezoidal and 
hydrostatic loads on plates. Previously where the force W1 is 0 or negative and 
W2 is non zero, then only one row of plates was being loaded. 
B) 04 The CIS/2 export has been updated to report the 'NAME' field from the 
section database rather than the 'STAADNAME' field which is intended as the name 
used for the section in a STAAD file only. 
B) 05 The GUI has been updated to ensure that the data displayed in the 
Materials table does not appear to be deleted. Note that this did not affect the 
data in the file. 
B) 06 The US Joist Section database has been updated so that it displays 
correctly in the GUI dialog box. 
B) 07 The GUI has been updated such that if a response spectrum loading 
definition is assigned to a load case which uses the ASCE method as the 
combination method and if both FF1 and FF2 values are also defined, then 
re-displaying the data in the dialog will populate the dialog with the correct 
value of FF2. 
B) 08 The GUI has been updated to ensure that the item ULZ in the Indian IS456 
concrete design parameter dialog box is added correctly and does not add the 
parameter ULY instead. 
B) 09 The GUI has been updated to handle incorrectly defined SPRING COMPRESSION 
commands which previously caused the application to crash when opening the data 
file. 
B) 10 The CIS/2 Export routine has been enhanced to support exporting standard 
sections from multiple databases. 
B) 11 The Auto Load Combination tool in the Loading dialog has an added option 
if creating new primary load cases using the REPEAT command (rather than 
combination load cases which will be summations of the results), to add 
additional notional horizontal loads from the categories specified in the menu 
option Commands>Loading>Edit Auto Loading Rules 
B) 12 The Loading dialog in the GUI has been updated to better reflect the 
assignment of a wind load definition. 
B) 13 The GUI has been updated to allow the command ELEMENT RIGID INPLANE 
ROTATION to be assigned graphically. For more details on the command refer to 
the Technical Reference manual section 5.24 
B) 14 The GUI has been updated to ensure that any orthotropic 2D materials that 
have been created in the GUI are written into the data file correctly with the 
name as defined and not as an isotropic material with the name. Material1. 
B) 15 The British Steel database has been updated with all the angle sections 
defined in the current SCI publication known as the Blue Book. Note also the 
sequence of the angle sections has been revised so that all the equal sections 
are listed followed by the unequal sections. 
B) 16 The European steel database has been updated to include both seperated 
tables for rectangular hollow sections (RHS) and square hollow sections (SHS) as 
well as including the sections in the older combined TUBE table with modified 
values of plastic modulus to be consistent with EN10210-2. Note that for 
completness, there is also an additional circular hollow table (CHS) as well as 
the older PIPE table. All the sections in the RHS, SHS and CHS sections are as 
defined in EN10210-2. 
(C) Issued Addressed in the Post-Processing Mode (7) 
C) 01 The GUI post processing and contouring of finite element results using the 
non-linear analysis has been improved so that the element centre stresses are 
reported as well as the corner stresses. 
C) 02 The design information displayed in the Member Query dialog box for 
members designed to AISC 360-05 has been updated to ensure that the correct load 
case is reported. 
C) 03 The intermediate moments reported on members analysed using the PDELTA 
analysis routine have been improved so that if the peak forces are generated at 
the ends of the members these are reported. 
C) 04 The critical forces in cold formed members designed to BS 5950-5 displayed 
in the member query dialog have been updated to account for the unit system 
C) 05 The post processing routine to create AVI movies of mode shapes has been 
updated to ensure that the facility is available for mode shapes generated from 
response spectra analysis. 
C) 06 The Member Query dialog GUI has been updated to correctly report the 
critical condition of members designed using the Indian IS800:2007 code. Note 
that the information was correctly reported in the output file. 
C) 07 The British Steel database has been updated with all the angle sections 
defined in the current SCI publication known as the Blue Book. Note also the 
sequence of the angle sections has been revised so that all the equal sections 
are listed followed by the unequal sections. 
(D) Issues Addressed in the Steel Design Mode (2) 
D) 01 The BS5950 module in Steel Designer has been updated to corrected so that 
the correct axial load + bending interaction ratio shown is the maximum of the 
following clauses: Cl. 4822, Cl 4823, Cl. 483, Cl. 4832, Cl 4832. 
D) 02 The output from steel designs performed with the Steel Designer module 
have been improved in that the values of Az displayed will be in mm3 (rather 
than m3) as previously these were so small that they did not register when shown 
to 2 decimal places. 
(E) Issues Addressed Concrete Design Mode (7) 
E) 01 The Eurocode 2 design in the RC Designer module has been improved so that 
when bars at the ends of beams are needed to be extended this no longer causes 
the design to fail. 
E) 02 The RC Designer code DIN 1045 has been updated to support the output of 
design details. 
E) 03 The design of slabs in the RC Designer module has been improved to address 
problems which occurred on extracting the moments and forces on triangular 
finite elements. 
E) 04 The RC Designer module for the ACI 318-99 degign brief has been updated to 
ensure that a suitable concrete strength can be assigned. 
E) 05 The DIN 1045 beam and column design in the RC Designer module have been 
updated to ensure that it is possible to produce a detailed report which 
previously caused the application to crash. 
E) 06 The method to establish the moments for design in slabs in RC Designer has 
been updated to be similar (although not the same) as the method used in the 
Post Processing module fo display the contour maps. 
E) 07 The RC Design module has been updated to assist in the formation of design 
slabs such that where the local out of plane axes (local Z) is not consistent, 
these are reported as invalid and suggests the model nbe revised so that if 
required as a single slab, the local axes be suitably aligned. 
(F) Issues Addressed in the RAM Connection Mode (4) 
F) 01 The RAM Connection Mode has been updated to ensure that the chosen design 
code method is retained each time the Settings dialog box is opened. 
F) 02 The RAM Connection Mode has been updated to ensure that Gusset Plate 
Column-Beam Brace (CBB) can be defined and designed. 
F) 03 The RAM Connection Mode has been updated to support double angle bracing 
members defined in the structural model. 
F) 04 The RAM Connection mode has been updated to allow theF) 04 The RAM 
Connection mode has been updated to allow the specification of the beam/girder 
to be specified on a beam/girder connection. 
(G) Issues Addressed in the Advanced Slab Design Mode (0) 
(None) 
(H) Issues Addressed in the Piping Mode (0) 
(None) 
(I) Issues Addressed in the Editor, Viewer and other modules (14) 
I) 01 The STAAD Editor has been updated to allow the font size to be resized 
from the Menu option View>Customise on has been updated to support display of 
Greek characters that are have been added to the output of steel sections 
designed to the Australian AS4100 code. 
I) 03 The Section Wizard application has been updated to prevent the occasional 
display of 'Icon PRB...' message boxes. 
I) 04 The Section Wizard export to a STAAD.Pro User Table has been updated to 
ensure that the elastic properties Sz and Sy values are not transposed in 
General section.
I) 05 The Freesketch module has been updated to allow export of sections into a 
STAAD User Table. 
I) 06 The Editor has been updated to support the display of international 
characters in the STAAD data file. 
I) 07 The report document produced from Section Wizard files now uses the 
standard Arial font in order to ensure it can be displayed on systems which used 
extended international fonts. 
I) 08 The Editor has been updated to ensure that if the data file is printed 
from within the Editor and the margins adjusted prior to the printout, all the 
data is reformated correctly and included in the printed document. 
I) 09 The STAAD user table (UPT) export routine of the Section Builder module of 
Section Wizard has been updated to correctly assign the properties of the major 
and minor axes with the local Y and Z axes in the UPT file. 
I) 10 The GUI has been updated to ensure that if a Bridge Loading module license 
is available, then the mode is shown available when a file is loaded. 
Previously, this was only set after the file was closed and re-opened. 
I) 11 The AASHTO LRFD code in the Bridge Deck mode has been enhanced such that 
it is now possible to provide the Impact Factor for load generation for HS Truck 
and Tandem vehicles. 
I) 12 The AASHTO LRFD module in the Bridge Mode has been updated include 
consideration of multiple presence and include the factor from section 3.6.1.2 
(table 3.6.1.1.2-1) 
I) 13 The AASHTO LRFD module in the Bridge Mode has been updated to improve the 
ability to set the curb distance. 
I) 14 The Section Wizard export to a STAAD.Pro User Table has been updated to 
ensure that the plastic properties Pz and Py values are not transposed in 
General section. 
(J) Issues Addressed in OpenSTAAD (1) 
J) 01 The OpenSTAAD Application object data handeling routines have been 
enhanced so that macros and applications using this API can access data from 
very large models which would have previously caused the API to crash. 
(K) Issues Addressed with Printing (12) 
K) 01 The online help documentation has been updated to link to the updated 
technical support website. 
K) 02 The N6960-1984 design has been checked against the amendments defined in 
Supplement 2. It has been noted that this supplement does not affect the designs 
performed by STAAD.Pro, that the International Design Codes Manual section 17.1 
has been updated to reflect that this supplement has also been considered in the 
designs. 
K) 03 The AIJ concrete parameter list has been updated in the International 
Design Codes manual. 
K) 04 The online manual has been updated to state that the minimum resolution 
that is required to use STAAD.Pro effectively is 1280x1024. 
K) 05 The International Design Codes Manual for the American Petroleum Institute 
(API) has been updated to correctly report that designs are performed to the 
21st Edition as indicated on the output files. 
K) 06 The technical reference manual section 5.31.3 has been updated to 
correctly report where the heights specified in the wind load definitions relate 
to the model. 
K) 07 The online help section of the International Design Code for Japanese 
Steel AIJ has been updated to reflect both the 2002 and 2005 versions of the 
code that are supported. 
K) 08 The GUI has been updated to ensure that the parameters for DIRECT 
ANALYSIS, TAUTOL and DISPTOL are created correctly in the STAAD data file. 
K) 09 The Applications Examples manual has been updated to address a few 
incorrect entries, specifically in Example No. 24 and Verification No. 5. 
Additionally In the International Design Codes manual section 10.B Japanese 
Steel Design, the actual bending capacities equation have been updated to 
reflect the actual equations used. 
K) 10 The French Steel section of the International Design Codes Manual, section 
6B has been slightly modified to correct the list of design parameters supported 
by the code. 
K) 11 The BS 5950 section of the International Codes manual section 2B.8 has 
been updated to confirm that to reflect GENERAL and ISECTION shapes being 
assumed as I shapes for BS5950 design. PRISMATIC shapes cannot be designed. 
K) 12 The International Codes manual section 5B.6 has been updated to show the 
correct value of steel grade for SGR 2.0 as S355 
(L) Issues Addressed with licensing / security / installation (3) 
L) 01 The STAAD SELECT XM License Configuration has been updated to display the 
currently supported licenses. 
L) 02 The installation has included RoboEx32.dll which is needed by the 
FreeSketch online help. ketch online help. 
L) 03 STAAD.Pro has been updated to better handle files that have been located 
in folders or marked as 'Read only' which would have caused the application to 
crash after displaying a warning that the file is not accessable by the user. 
The warning is still displayed.



4. What's New in STAAD.Pro V8i, Build 20.07.06 QA&R ( 18 March 2010) 
  (A) Issues addressed in the Analysis/Design engine (13) ) 
  (C) Issued Addressed in the Post-Processing Mode (9) 
  (D) Issues Addressed in the Steel Design Mode (0) 
  (E) Issues Addressed Concrete Design Mode (1) 
  (F) Issues Addressed in the RAM Connection Mode (4) 
  (G) Issues Addressed in the Advanced Slab Design Mode (0) 
  (H) Issues Addressed in the Piping Mode (0) 
  (I) Issues Addressed in the Editor, Viewer and other modules (0) 
  (J) Issues Addressed in OpenSTAAD (0) 
  (K) Issues Addressed with Printing (1) 
  (L) Issues Addressed with licensing / security / installation (1) 
(A) Issues addressed in the Analysis/Design engine (13) 
A)01 The IS800:2007 code check has been updated such that the bending with 
tension check, clause 9.3.2.1 for bending about the minor Y axis, has been 
corrected to ensure that the minor axis capacity is used (not the major axis as 
previously). 
A)02 The self weight calculation routine has been updated for wide flange 
sections defined as composite so that the weight of the concrete is also 
accounted for. 
A)03 The ASD method in the AISC 360-05 design has been updated to remove the 1.6 
factor the applied notional loads. 
A)04 The analysis engine has been updated such that if a second order analysis 
has been performed, the intermediate forces reported in the tables will now 
include the full seconds order effect. Also the bending member query dialog has 
been updated to indicate that displaying intermediate results can be 
supplemented with approximate second order effects. Therefore, if accurate 
results are required at specific locations, then a node should be inserted into 
the beam at that location. 
A)05 The AISC ASD design has been updated where the torsion parameter is set to 
1. Details of the torsional stress design would only be created for members 
where the critical condition does NOT involve torsion, but torsion is involved 
in the design of other, non critical load cases. Now the torsional stress design 
is reported for all members. 
A)06 The PDELTA nn ANALYSIS SMALLDELTA in the STAAD analysis engine has been 
updated to ensure that it is possible to use models defined which include MEMBER 
TENSION commands. 
A)07 The ACI 318 batch design has been updated to correct use of the RHOMN 
parameter when applied to plate elements. 
A)08 The PDELTA SMALL DELTA analysis has been updated to ensure that small 
residual moments are not generated at the ends of members with releases defined. 

A)09 The introduction of the FLOOR LOAD with a ONE WAY setting addresses a 
number of major limitations in the AREA command and is recommended to be used 
instead. If the AREA LOAD command is used, the analysis engine now reports a 
warning and the recommendation that the FLOOR LOAD command be used. 
A)10 The IS800:2007 steel design code check has been updated such that the 
interaction checks, clause 9.3.2.2.2 are performed with the effective lateral 
torsional buckling length taken as LX multiplied by the effective length factor 
KX. 
A)11 The ACI 318 concrete beam design has been updated to ensure that when the 
maximum spacing determines the reinforcement requirements, those are correctly 
included. 
A)12 The analysis engine has been updated to allow the use of non standard 
sections in a User Provided Table (UPT) with spaces in the name, by enclosing 
the name in speech marks thus "UPT name". 
A)13 The IS:13920 concrete column design routines have been improved to ensure 
that shear force calculations and the output messages are correct. 
(B) Issues addressed in the Pre-Processing Mode (17) 
B)01 The GUI has been updated to ensure that when the menu item 
"Commands->Analysis->Non-Linear Analysis" is selected, the parameters are 
written to the data file in the correct format as per AD.2007-05.1.1 Nonlinear 
Analysis 
B)02 The GUI has been updated to allow hydrostatic loading on plates to be 
assigned when the W2 value is defined as 0.0. 
B)03 The GUI has been updated to handle element partial pressure loads so that 
all 4 of corner pressures are processed correctly. 
B)04 The GUI has been updated to allow the Member Release Edit cursor to 
redefine the releases at the end of a member. 
B)05 The GUI has been updated to ensure that defined trapezoidal loading is 
maintained when members are manipulated using the copy and paste commands. 
B)06 The GUI has been updated to ensure that a PLATE MAT command that has been 
used in conjunction with multi-linear springs is saved in the data file 
correctly. 
B)07 The GUI has been updated to ensure that it processes a member design 
command GROUP SZ without closing the application. 
B)08 The Surface object query dialog box has been updated to ensure that it 
displays the correct sequence of node numbers. 
B)09 The GUI has been updated to ensure that when using the menu item 
"Commands-->Analysis-->Non-Linear Analysis..." the data is written correctly 
into the data file. 
B)10 The GUI has been updated to ensure that any comments in the Wind Type 
Definition dialog is saved into the STTAAD data file. 
B)11 The GUI has been updated to ensure that sections defined as Japanese T 
sections are not saved back by the GUI as H sections. 
B)12 The Member Query Dialog display of the deflection diagram has been updated 
to trap possible singularities in very rare situations where the values 
processed are exactly symmetrical. 
B)13 The GUI has been updated to maintain the current pan and zoom setting on 
the main structure window when changing to a different page. 
B)14 The file processing routine has been updated so that when reading a STAAD 
file from a URL which contains dots, if there are errors, the error file is 
correctly named, and may be saved. 
B)15 The GUI has been updated to handle situations where the user’s system 
configuration for toolbar settings has become corrupted and allows a safe exit 
from the program. 
B)16 The GUI has been enhanced to add more undo operations such as deleting load 
cases from the Loading Dialog. 
B)17 The GUI has been updated to ensure that the assignment of temperature 
loading on 3D brick or solid objects gets saved into the data file. 
(C) Issued Addressed in the Post-Processing Mode (9) 
C)01 The intermediate member results of models analysed with a Direct Analysis 
method and reported in the Post Processing Mode has been improved. 
C)02 The functions used for calculating the forces at specific locations on 
finite elements as used by the cut line routine have been updated to correctly 
account for any defined material shear modulus. 
C)03 The data displayed in the Member Query dialog for a design to the Eurocode 
EC3 has been updated so that it correctly shows the design data and results. 
C)04 The Post Processing Mode has been updated to provide a warning with regard 
to the intermediate results along the length of a member when analysed using the 
DIRECT ANALYSIS method as it is only the ends of the members that report the 
full second order effects. The intermediate results use the simplified first 
order theory and thus where a more accurate result is required at an 
intermediate location, a node should be introduced. 
C)05 The post processing mode has been updated to ensure that it is able to 
display all mode shapes calculated by the analysis engine and reported in the 
output file. 
C)06 The GUI display of reactions has been updated to ensure that if the units 
are changed from the "View>Options>Force Units", if the reactions are currently 
displayed, they are updated immediately. 
C)07 The GUI has been updated such that the units of member forces are saved 
along with the user profile information so that when a file is opened, it uses 
that information rather than the Force Unit defined in the model. 
C)08 The post processing routine that allows the structure to be coloured based 
on its design status has been updated to ensure that the colour setting of a 
'Not Designed' member is retained. 
C)09 The post processing graph of a steady state analysis has been updated to 
ensure that if the option to export the data to a text file is selected, all the 
data after the maxima is exported correctly. 
(D) Issues Addressed in the Steel Design Mode (0) 
(None) 
(E) Issues Addressed Concrete Design Mode (1) 
E)01 The RC Designer module has been updated to better handle the addition of 
members to a design group. 
(F) Issues Addressed in the RAM Connection Mode (4) 
F)01 The RAM Connection mode has been redesigned which has addressed issues 
which previously prevented a number of beam girder connections or smart bracing 
connections from being designed. 
F)02 The new RAM Connection interface has ensured that Beam-Girder connections 
can now be created. 
F)03 The RAM Connection Mode has been updated to better handle beam splice 
connections for both basic and smart connections. 
F)04 The RAM Connection design mode has been enhanced such that if a connection 
is modified in the RAM Connection dialog, those changes are retained allowing 
the connection to be closed and re-opened and re-edited with the original 
modifications still available. 
(G) Issues Addressed in the Advanced Slab Design Mode (0) 
(None) 
(H) Issues Addressed in the Piping Mode (0) 
(None) 
(I) Issues Addressed in the Editor, Viewer and other modules (0) 
(None) 
(J) Issues Addressed in OpenSTAAD (0) 
(None) 
(K) Issues Addressed with Printing (1) 
K)01 The user report output of the plate centre stress table when set to 
"Grouping for Load Tables" by load case and "Grouping for Results Table" by load 
case has been realigned so that the data aligns correctly with the column 
headers. 
(L) Issues Addressed with licensing / security / installation (1) 
L)01 The installation has been updated to ensure that the L)01 The installation 
has been updated to ensure that the default location is the main Windows drive 
rather than the folder with the maximum usable space. 



5. What's New in STAAD.Pro V8i, Build 20.07.06 ( 23 December 2009) 
  (A) Issues addressed in the Analysis/Design engine (87) 
  (B) Issues addressed in the Pre-Processing Mode (28) 
  (C) Issued Addressed in the Post-Processing Mode (4) 
  (D) Issues Addressed in the Steel Design Mode (0) 
  (E) Issues Addressed Concrete Design Mode (9) 
  (F) Issues Addressed in the RAM Connection Mode (0) 
  (G) Issues Addressed in the Advanced Slab Design Mode (1) 
  (H) Issues Addressed in the Piping Mode (1) 
  (I) Issues Addressed in the Editor, Viewer and other modules (1) 
  (J) Issues Addressed in OpenSTAAD (4) 
  (K) Issues Addressed with Printing (2) 
  (L) Issues Addressed with licensing / security / installation (2) 
----------------------------------------------------------------- 
(A) Issues addressed in the Analysis/Design engine (87) 
A)01 The analysis engine has been updated to correct the stresses reported on 
solid elements in models with spectrum load cases defined. 
A)02 The analysis engine has been updated to calculate the section properties of 
tapered I sections with the web defined with zero thickness. 
A)03 The analysis engine has been updated to ensure that wind load generation on 
leeward faces of buildings using the ASCE 7 code are now calculated using an 
interpolated Cp value. 
A)04 The analysis engine has been updated to ensure that moment loads applied to 
tapered members in metric units are correctly accounted for. 
A)05 The analysis engine has been updated to handle data files where notional 
load data is separated over multiple lines using the hyphen as the line 
continuation character. 
A)06 The analysis of load cases defined with REPEAT LOADS including Notional 
Loads has been updated to ensure that all the notional loads components are 
included. 
A)07 The analysis engine has been updated to ensure that the correct units are 
used when a wind load case is defined before a response spectrum load case. 
A)08 The analysis engine has been updated to support the definition of profile 
points and stress locations in external UPT General Section profiles. 
A)09 The engine has added a guidance note to suggest using PDELTA KG for mildly 
non-linear situations, but PDELTA 30 or NONLINEAR analysis if the model is 
strongly non-linear. Additionally for models defined by a single member, a 
PDELTA KG analysis, if defined, will be changed to the more appropriate PDELTA 
30 SMALLDELTA solution. 
A)10 The analysis engine has been updated to support the reporting of 2D 
orthotropic materials defined in a STAAD model. 
A)11 The Canadian steel design module S16-01 has been revised to improve the 
method for calcuating the major axis moment MRZ. Note this modification was 
introduced in STAAD.Pro V8i Build 05 20.07.05, but was not documented. 
A)12 An additional SET command has been added to turn off the tau-b details in 
the output file when running a Direct Analysis. 
A)13 The PDELTA, Direct Analysis and Buckling analysis engines have been updated 
to include both member strain and temperature effects in the Kg matrix. 
A)14 The PDELTA analysis has been modified to ensure that the final member loads 
include the PDELTA forces. 
A)15 The basic solver has been updated to improve the calculation of notional 
loads. 
A)16 The message reported by the analysis engine for incorrectly defined GROUP 
definitions has been revised. 
A)17 The floor load generation routine in the analysis engine has been updated 
to ensure that members that are defined as inactive or have US joist properties 
are not included in the list of members to form the boundaries of a floor. 
A)18 The analysis engine has been modified to improve the member sectional 
displacement results reported by very small displacements (<0.001mm). 
A)19 The analysis engine has been updated to correctly calculate floor loading 
when considering INACTIVE or JOIST members. A)20 The analysis engine has been 
updated to remove an erroneous warning message generated when using the PERFORM 
DIRECT ANALYSIS with a SELECT command. 
A)21 The analysis engine has been updated to ensure that if a structure is 
defined with members marked as INACTIVE/TENSION ONLY/COMPRESSION ONLY and there 
are multiple load cases specified with a DIRECT ANALYSIS, then the members will 
now maintain it’s active or inactive state for all load cases, not just the 
first load case. 
A)22 The analysis engine has been updated to ensure that multiple SNiP II 7 81 
spectrum definitions are accounted for correctly in a model. 
A)23 The analysis engine has been updated to address problems associated with a 
second order analyses that incorporate the stress stiffening Kg matrix. When the 
diagonals of the K+Kg matrix are negative which would result in non-sensible 
results, now the element Kg matrix is modified to ensure that the diagonals of 
the K+Kg remain positive. 
A)24 Modal weight, modal mass x g, added to the output of a modal analysis. 
A)25 The Direct Analysis solution has been updated so that it the default will 
be that it will attempt to run 20 iterations rather 7 that was the earlier 
default. 
A)26 The Direct Analysis routines have been improved to ensure that all the 
results are shown based on the reduced value of EI. 
A)27 The Direct Analysis routines have been improved to report a more accurate 
support reaction. 
A)28 The Pushover analysis has been enhanced to ensure that if the input 
includes a LDSTEP of less than 4 a warning is reported in the output and 
additionally the incremental push load calculation has been enhanced. 
A)29 The production of the *.TIM file by the analysis engine has been updated to 
ensure that the values written to the file after the peak value are correct. 
A)30 The AISC LRFD code was updated in build 20.07.05 to correct the calculation 
of Cb, but not documented in the release report. 
A)31 The AISC steel design code has been updated to ensure that models defined 
in metric units, the deflection check uses the results in the correct units. 
A)32 The AISC 360-05 has been updated to handle models defined with the SET Z UP 
option. 
A)33 The AISC 360:05 steel design module has been updated to correctly support 
the GROUP command and ensure the deflection checks match those from the AISC 9th 
Edition. 
A)34 The AISC 360:05 design module has been updated to ensure that channel 
sections with non-compact flanges are not checked to clauses F6-3 and F6-4. 
A)35 The AISC 360-05 design code for HSS sections has been updated to correctly 
classify sections as per table B4.1. 
A)36 The AISC 360-05 design has been updated for HSS sections bending about 
their minor axis and reverse the width and height dimensions according to the 
direction of bending. 
A)37 The AISC 360-05 steel design has been updated to improve the calculation of 
Mn in clause F4.8 for non compact sections. 
A)38 The AISC 360-05 design module has been updated to correctly display the 
code checks performed for members in axial tension that have failed in 
slenderness. 
A)39 The AISC 360-05 design module has been enhanced so that it can design user 
defined I sections. 
A)40 The AISC ASD design module has been updated to correctly account for 
closely spaced holes defined in the web. 
A)41 The AISC 360-05 and IS800:2007 design modules have been updated to allow 
the automatic member selection command to run. 
A)42 The IS800:2007 design code check has been updated to ensure that the worse 
slenderness ratio is reported, not just that from the first load case. 
A)43 The IS800:2007 steel design module TRACK 2.0 output has been updated such 
that the section number now includes the sub section number to signify whether 
the condition checked is for combined tension and bending or compression and 
bending. 
A)44 The IS800:2007 steel design module has been updated such that the 
calculations for bending capacity use the absolute value of shear force rather 
than a signed value of shear force. 
A)45 The IS800:2007 steel design module has been updated such that the design 
for laterally unrestrained members will now limit the bending capacity by the 
lower of the moment capacity defined in clause 8.2.1 and the lateral torsional 
moment in clause 8.2.2. Under high shear, the capacity due to 8.2.1 may govern. 
A)46 The IS 800:2007 design module has been enhanced to support the design of 
welded plate sections. 
A)47 The IS800:2007 steel design code has been updated to now use the section 
classification determined by the loading in each load case. As the IS800:2007 
specification of r1 and r2 is incomplete, the definition in BS5950-1:2000 is 
used instead. 
A)48 The IS 800:2007 steel design module has been enhanced with a check for 
irreversible deformation under serviceability loading, according to clause 
8.2.1.1. The clause provides limits for simply supported beams, cantilevers and 
general beams. A member being checked will use the setting of the CAN parameter, 
0=general, 1=cantilever, 2=simply supported. Note that the limits published in 
the IS code are incorrect and those defined in BS5950-1:2000, clause 4.2.5.1 are 
used instead. 
A)49 The IS800:2007 design module has been enhanced to ensure that the LX 
parameter can be used as well as the KX parameter. 
A)50 The IS800:2007 steel design module has been updated to ensure that a 
section that is limited by clause 6.3 is reported as such. 
A)51 The IS800:2007 steel design module has been updated to ensure that the 
correct load case is reported when the load case numbers are not sequential. 
A)52 The IS800:2007 steel design module for channel sections has been updated to 
ensure that the correct plastic properties of channel sections are reported. 
A)53 The IS800:2007 design module has been updated to allow the use of a FYLD 
parameter to set the yield strength for the steel. 
A)54 The IS800:2007 design code has been updated to support the design of 
tapered I sections. 
A)55 The IS800:2007 steel design code has been updated to produce a more compact 
result in the output file which reduces the amount of printout generated for 
larger models. 
A)56 The IS801 cold formed steel design module has been updated to improve the 
compression checks. 
A)57 The IS13920 concrete design module has been updated to correctly account 
for a COMBINED command in the input file. 
A)58 The IS 1893 response spectrum analysis has been updated to correctly 
account for story heights in the story drift calculations. 
A)59 The IS456 column design routine has been updated to ensure that if it is in 
tension, it does not check the bracing conditions which are not required. 
A)60 The BS5950 steel design code check has improved the SELECTION routine for 
channel sections such that sections that would pass a code check are also 
correctly identified and may be selected by a SELECTION routine. 
A)61 The BS 5950:2000 design module has been updated for the design of plated 
wide flange shapes. These sections are now considered as wide flange shapes with 
flanges of an equivalent shape and section B.2.4 is used to calculate the 
equivalent slenderness. 
A)62 The Eurocode 3 design module, EN version, has been updated to ensure that 
when the routine that performs the check for axial load and bending is correctly 
initialised when running a select process. 
A)63 The Eurocode 3 design has been updated to ensure that class 4 sections are 
correctly initialised. 
A)64 The EN version of Eurocode 3 has been updated such that pipe sections are 
allocated a LTB capacity based on the full moment capacity of the section for 
its section class. This capacity is then used in the combined bending and 
compression checks. 
A)65 The Eurocode 3 steel design module has been updated such that for CHS 
sections with combined axial load and bending now checks that if the axial 
load/capacity exceeds unity, the check would result in a divide by zero which is 
now trapped. 
A)66 The Eurocode 3 steel design has been updated to ensure that there is 
consistency in the reported governing criteria if two load cases report the same 
utilisation, that from the first load case. 
A)67 The Eurocode 3 steel design module has been updated to correctly calculate 
the eccentricity of class 4 angle sections. 
A)68 The Eurocode 3 design has been updated such that while working out the 
interaction factors for the combined bending + axial load case as per Annex B 
(Cl 6.3.3), the K factor for lateral torsional buckling( kzy) is being taken as 
the minimum of (kzy from table B.2 & kzy from table B.1). Now if the section 
under consideration is susceptible to torsional buckling kzy is from table B.2 
and not the minimum value. 
A)69 The Eurocode 3 design module has been enhanced with a new parameter called 
'ZG' which the user can use to specify the relative distance to the shear centre 
at which the load is to be applied. By default, ZG = +Depth of section/2 ( 
except T Sections, where:- ZG= +Flange thickness/2 by default) if the parameter 
has not been specified. 
A)70 The AS100 steel design module has been updated such that the ALB parameter 
which has a default value of 0.0 will now calculate ALPHA_B according to table 
6.3.3(1) and 6.3.3(2). Before if not set, the calculations would work with 
ALPHA_B = 0.0. 
A)71 The AS4100 steel design code has been updated such that the factor Alpha_M 
is now automatically calculated to clause 5.6.1.1 unless specifically defined 
using the parameter ALM. 
A)72 The AS3600 concrete design module has been enhanced such that if the 
required Ast> max Ast, a suitable warning message is reported in the output. 
A)73 The AIJ concrete design module has been updated to correct the displayed 
percentage of steel in beam designs. 
A)74 The NPD design module has been updated to ensure that prismatic sections 
being checked are correctly aligned and reported as not so. 
A)75 The SABS0162 steel design code has been updated to ensure that the shear 
capacities are correctly calculated and not shown as zero leading to an overall 
utilization of infinity. 
A)76 The DIN 18800 steel design module has been updated with a check to flag a 
warning if the steel is defined with a strength of less than 10N/mm2 or greater 
than 1000N/mm2. 
A)77 The S16-01 steel design code has been updated to correct the factored 
moment resistance MRZ to include section clause 13.6. 
A)78 The N690-1994 code has been updated so that the correct equation number is 
included in the code check. 
A)79 The ASCE 10-97 transmission tower design code has been updated to correct 
the axial load segment of the calculation of equation 3.12.-2 
A)80 The ASCE-7-05 wind loading calculations has corrected a factor 0.05 used in 
equation 12.8-6, which should be 0.5 and equation 12.8-5 has been updated 
according to supplement #2. 
A)81 The API code check has been updated to ensure that members identified as 
chords with 6 figures are processed correctly. 
A)82 The analysis output file has been enhanced when the optional parameters 
PRINT STATICS CHECK or PRINT STATICS LOAD have been used with an analysis 
command such that now if there is significicant load applied in a global 
direction (greater than 1.0e-8 kips) then an equivalent 'centre of force' is 
reported for that direction. 
A)83 The ASCE 7 wind load engine has been updated such that the earlier lower 
limit of 10 lb/ft2 on individual faces has been removed. As a number of wind 
loading conditions can be created in the model, it is important that the loading 
is checked to ensure that the minimum conditions are met as this cannot be done 
automatically by STAAD.Pro. This makes the wind load generator more accurate, 
while still allowing to option override the pressures as desired, once they are 
generated. For example, it is possible to create to wind cases and interpret the 
10 psf minimum to be split 50%/50% between the windward and leeward faces. 
A)84 The ASCE 7 wind load module has been updated such that the equation p = qz 
G Cp – qh (GCpi) which was implemented as p = qz G Cp + qh (GCpi) so that both 
+ve and –ve values of the term GCpi for each face and therefore would be able to 
figure out the worst effect on each face. Whereas this is fine for getting the 
worst effect on each face individually, when it comes to the structure as a 
whole, it leads to very conservative results when the windward and leeward 
effects are considered together. The equation is now set to p = qz G Cp – qh 
(GCpi) so that when an internal suction pressure on the leeward side can now be 
correctly combined with a positive external pressure on the winward side. 
A)85 The IS800:2007 steel design module routines have been restructured to 
greatly reduce the time taken to perform the designs. 
A)86 The Canadian concrete design was enhanced to ensure that when designing 
stirrups the spacing does not violate clause 11.2.8.4. This update was 
introduced in STAAD.Pro V8i Build 05 but was not documented. 
A)87 The analysis engine has been updated to ensure that it correctly handles 
Response Spectra defined using the EC8, 1996 specification. 
(B) Issues addressed in the Pre-Processing Mode (28) 
B)01 The Indian standard sections have been updated to the IS808-1989 code. For 
legacy files, this can be switched back to the older sections by selecting the 
option in the Configuration dialog box which is accessed on the Start Page. 
B)02 The steel section databases have been updated with a new Russian ASChM 
database and a cold formed GOST database with pipe sections. 
B)03 The GUI has been updated to ensure that if an IS1893 seismic block is 
defined and includes depth of foundation below ground, the data is written out 
correctly. 
B)04 The GUI has been updated to ensure that sections from the Australian Cold 
Formed database can be assigned graphically. 
B)05 The GUI has been updated to allow South Korean H and I shapes to be 
selected in a steel design. Previously defined South Korean sections could only 
be checked for code compliance. 
B)06 The GUI has updated an issue which prevented various meshing routines 
defined in the Parametric Models page from creating finite element meshes. 
B)07 The seismic parameter dialog box in the GUI has been updated to allow the 
dialog to use alternative text when modified with a suitable language pack. 
B)08 The GUI has been updated to allow Reference Load Cases to include FLOOR 
LOAD commands. 
B)09 The seismic load generation dialog for the NRC 2005 code has been updated 
to remove the superfluous Accidental Load option. 
B)10 The GUI has been updated to ensure that the Turkish seismic load commands 
are added correctly when the seismic weights are defined in a Reference Load 
Case rather than primary Load Case. 
B)11 The GUI has been updated to ensure that if an IBC 2006 load definition is 
created, it can be added to a load case as a valid item. 
B)12 The US aluminium database has been updated with 3 new wide flange sections. 

B)13 The GUI has been enhanced to ensure that beams that are divided with the 
GUI tools apply material property to all new segments. 
B)14 The GUI has been enhanced to ensure that when materials are assigned to 
members then if the combination of material and property does not current exist, 
it is added to the Properties dialog box. 
B)15 The GUI has been updated to include the CMY and CMZ design parameters for 
the ASCE 10-97 transmission design code. 
B)16 The ASCE 10-97 transmission tower design code parameters in the GUI have 
been updated and the parameters UNL and UNF which are not used have been 
removed. 
B)17 The ASCE 10-97 transmission tower design code parameters in the GUI have 
been updated and the parameters UNT and UNB defined in the manual have been 
added. 
B)18 The GUI has been updated to include the AISC 360-05 steel design parameters 
BEAM and TRACK 2.0 as per the manual. 
B)19 The GUI has been updated to allow the AS 4100 steel design code to assign 
values of 0, 1 or 2 to the MAIN parameter for slenderness checks. 
B)20 The GUI has been updated to ensure that PRINT commands assigned to named 
groups are maintained. 
B)21 The GUI has been updated to process a file that has a poorly constructed 
ELEMENT RELEASE command spread over a number of lines but does not have the line 
continuation character on lines that are to be continued on the following line. 
B)22 The GUI has been updated to ensure that when a PERFORM DIRECT ANALYSIS 
command is added with a PRINT option, the data is correctly formatted in the 
input file. 
B)23 The GUI has been updated to ensure that Geometric non linear analysis 
commands are correctly saved into the data file without exceeding the line 
length limit. 
B)24 The GUI has been updated to ensure that releases defined on physical 
members are displayed. 
B)25 The GUI has been updated to ensure that if primary load cases are added 
which a load case number greater than any defined combination numbers, the 
primary loads are still written before the load combinations data. (Note this 
was fixed in build 20.07.05, but not documented) 
B)26 The reading/writing of the P-Delta analysis option by the GUI has been 
updated to correctly reflect the command structure and operation of the command 
by the analysis engine. 
B)27 A set of Russian load combinations have been added for the Automatic Load 
Combination generator. B)28 The handleing of BETA angles that have not been 
assigned to members has been modified. 
(C) Issued Addressed in the Post-Processing Mode (4) 
C)01 The Pushover analysis has been updated to ensure that the results of the 
loads for a given load step display the appropriate base shear. 
C)02 The post processing mode has been updated to ensure that the corner 
stresses of sections defined from the aluminium channel table are correctly 
displayed. 
C)03 When a non linear analysis has been performed, the post-processing Beam 
Force Detail table now shows the section forces which include the secondary 
force effects. Note that this may not exactly match the results displayed in a 
member query dialog, even with the include secondary effect option there as the 
member query dialog can only iterate a single time to account for the secondary 
effect, where as the table reports the data from the analysis engine which will 
have iterated until convergence. 
C)04 The GUI has been updated to better display the displacement of members with 
offsets. 
(D) Issues Addressed in the Steel Design Mode (0) 
(none) 
(E) Issues Addressed Concrete Design Mode (9) 
E)01 The RC design module has been updated to ensure that the legends for slab 
designs are consistent with the displayed diagram. 
E)02 The RC Designer module has been enhanced to ensure that when returning to 
it to check a design that originally had a slab defined checks that the slab 
still exists first. 
E)03 The RC Designer module has been enhanced such that when a suitable Russian 
language pack is applied, the correct Russian characters are displayed. 
E)04 The ACI design in the RC Design module has been updated such that the 
printout code for the biaxial moments on a column, both the nomenclature for the 
capacities and moments, and the printed values were incorrect. However, the 
Pass/Fail ratios were correct however. This is now changed to use the correct 
terms and to show the capacities and moments in the correct units. The value of 
Phi used is also added to the printout. 
E)05 The ACI column design in the RC Design module has been updated to account 
for when there is axial compression, but no applied moment about either axis. 
E)06 The RC Design module for Eurocode 2 has been updated such that the spacing 
between main bars was being checked to ensure it was not greater than 150 mm, as 
this is largest distance that a longitudinal bar is allowed to be from a 
restrained bar. This wrongly assumes that the bar being checked is not itself 
restrained. In fact it is perfectly permissible to have bars at greater spacing 
as long as they are all restrained by shear links. The program correctly does 
this, so the check from both rectangular and circular columns has been removed. 
E)07 The RC Designer Module has been updated such that load cases that have been 
defined with dynamic loading are identified and columns are designed with the 
reported force as an envelope (i.e. both positive and negative) 
E)08 The RC Design module has updated the BS8110 Beam Brief dialog to ensure 
that when opening an exisiting brief, if the option to use enhanced shear was 
set, then that option is maintained. 
E)09 The RC Designer module has been updated to allow the reinforcement layout 
to be exported to ProConcrete. In the Concrete Member Mode, after completing a 
design, select the menu Groups>Export Group for Detailing. The members of the 
group can be selected and a file produced which can be read by ProConcrete. 
(F) Issues Addressed in the RAM Connection Mode (0)
(none) 
(G) Issues Addressed in the Advanced Slab Design Mode (1) 
G)01 The Advanced Slab Design mode has been updated to only support an 
integrated link to RAM Concept and the previous link to ADAPT has been removed. 
(H) Issues Addressed in the Piping Mode (1) 
H)01 The piping mode load generator has been enhanced to ensure that if a 
connection is made to a support that has no loading, no blank load command is 
produced when the STAAD loads are created. 
(I) Issues Addressed in the Editor, Viewer and other modules (1) 
I)01 The Editor has been updated with additional recognised commands. 
(J) Issues Addressed in OpenSTAAD (4) 
J)01 The macro 'Export Model to AutoPIPE' which is included in the installation 
has been updated to better transfer user defined angle sections, the beam angle 
of user defined unequal angles and dimension data for drawing 3D sections in 
AutoPIPE. 
J)02 The macro 'Export Model to AutoPIPE' which is included in the installation 
has been updated with the following 9 changes:- 
  1) Default Yield Strength and Ultimate Strength changed to zero.(These values 
  are not used in AutoPIPE. 
  2) When the material is STEEL, STAINLESSSTEEL, ALUMINUM and CONCRETE, the 
  material constant is not output. (In AutoPIPE, it doesn't refer from NTL file. 
  ) 
  3) The Unit conversion of material constant (E, Density) was corrected. 
  4) Iz and Iy output position was corrected. 
  5) The Unit conversion of section size and section properties was corrected. 
  6) Thickness of pipe section of User Define Table is calculated from area. 
  7) Spring supports have been updated. 8) Support setting was corrected. 
  (Unnecessary data was deleted.) 9) Beam release setting was corrected. (In 
  AutoPIPE, only FX, MZ, and MY can be set. ) 
J)03 The OpenSTAAD Result object AreResultsAvailable has been updated to return 
the correct response based on the status of the associated STAAD file. 
J)04 The macro 'Export Model to AutoPIPE' which is included in the installation 
has been updated to allow beta angles with fractions of a degree to be exported. 

(K) Issues Addressed with Printing (2) 
K)01 The user report has been updated to display the section properties for 
double wide flange sections. 
K)02 The user report has been updated to ensure that the definition of the 
design property for WT sections is listed as the cut section, not the base 
section from which it has been cut. 
(L) Issues Addressed with licensing / security / installation (2) 
L)01 The previous installation did not include the .NET 3.5 SP1 which meant that 
if a workstation did not have this installed, the DXF import routine for the 
grid tool would fail to work. 
L)02 The limit of model size when working with STAAD.Pro using a trial license 
has been removed. 



6. What's New in STAAD.Pro V8i, Build 20.07.05 ( 21 May 2009)
A) Issues addressed in the Analysis/Design engine (26) 
1) The analysis engine has been updated to ensure that members that have PRINT 
commands allocated are handled even if they also have INACTIVE, DELETE or IGNORE 
assigned. 
2) The analysis engine has been modified to account for files where member 
loading definitions have not been completed correctly. 
3) The analysis engine has been updated to ensure that the command PRINT LOAD 
DATA includes all load data for element joints in the output file. 
4) The analysis engine has been modified such that the clean up routines do not 
cause an application error with certain files including the MAIN parameter. 
5) The routine to check for co-planar status of 4 noded elements has been 
improved in the engine to match the method used in the GUI. 
6) The IBC 2003 module has been updated to provide a correct value for CT when 
not specified, based on the other entered data. 
7) The AISC ASD design module has been improved for the design of tubes and HSS 
sections in reverse curvature. It has been updated to correct the sign of M1/M2 
in equation F3-2 
8) The AISC ASD design module for angles has been improved to handle those with 
AXIS set to 2. 
9) The AISC 360-05 steel design code check for combined torsion+shear+flexture 
using the ASD setting has been improved. It has been updated to use Mrz / Mcz + 
Mry / Mcy 
10) The AISC 360-05 steel design module has been updated to ensure that 
deflection checks are performed correctly even if the parameters DJ1, DJ2 and 
DFF have not been specifically assigned to the members (i.e. Use the default 
values). 
11) The AISC 360-05 design module has been improved to better handle members 
with a TRACK 2 output option. 
12) The EC3 steel design module has corrected the deflection check performed 
with a TRACK 4 setting. 
13) The EC3 steel design module has corrected checks performed with axial 
tension and bending which previously the axial load (compression) check 6.3.1.1 
was being done along with axial load + bending checks (6.2.9). 
14) The EN version of the EC3 steel design, EC3 BS, has been improved to inform 
users that attempt to design prismatic rectangular sections, that this is not a 
suitable section profile to be designed with this module. 
15) The BS5950 steel design module has been improved for double angle sections. 
If MAIN 0 has been specified and lamda_C > 0 then the ratio reported would be 
lambda_C/50. However, the Lamda_C limit of 50 is applicable only for double 
angles, double channels, double T sections or battened struts. Hence a check has 
also been added to check the section type (only double anlges for now, as we do 
not design the others). So only double angles would be checked against a Lamda_C 
limit of 50. 
16) The S16-01 steel design code has been updated to ensure that for laterally 
unbraced members, they are additionally checked according to section 13.6. 
17) The ASCE 10-97 transmission design module has been updated to ensure that 
sections such as HSS profiles, which are not covered by the design code, are not 
checked as though they were a section covered by the code. 
18) The design of cold formed steel sections to the Indian IS 801 code have 
improved the calculations of compression capacity and torsional flexural 
buckling stress. 
19) The AITC timber design module has been updated to handle sections that have 
been assigned the TRUSS parameter. 
20) The AITC timber design module has been enhanced to allow member groups to be 
designed as in the steel design modules. 
21) The ACI concrete design module has been updated to display both CLT and CLB 
in the output file. 
22) The Indian concrete design module IS 456-2000 has been updated to include a 
check on the clear cover such that only sensible values of CLEAR are allowed. 
23) The design module for the Canadian concrete code has been updated to ensure 
that the spacing of stirrups correctly checks for the requirements of sections 
11.2.8.4. 
24) The design module for the Canadian steel code has been updated to ensure 
that section class is reported when the TRACK 2 output is requested. 
25) The direct analysis alogithm has been updated to check for additional 
instabilities in the stiffness matrix during the iteration process. 
26) The AISC N690-1994 code has been added. 
(B) Issues addressed in the Pre-Processing Mode (23) 
1) The GUI has been updated to correctly display releases that have been 
assigned to physical members. 
2) An option has been added to the configure dialog that allows users to turn 
off the warning regarding opening files on network drives that can have serious 
performance issues as STAAD.Pro is designed to access files during analysis. 
3) The rouge menu item 'Run Technip Pipe Rack' has removed from the GUI. 
4) Unit displays for alpha, the coefficient of thermal expansion have been 
modified to remove the @ symbol. 
5) The Pre Processing menu item Commands>Miscellaneous>Check Soft Story has been 
updated to include the fact that it is for the IS 1893 code. 
6) The AISC steel database has been enhanced with a number of additional wide 
flange sections. 
7) The AISC tube section database has been updated to remove the duplicated 
section TUB90703. 
8) The Indian steel database of Tee sections has been updated with new torsion 
IX values. 
9) The South African steel section database has been updated with revised values 
of IY for the PG sections. 
10) The timber databases have been updated to ensure that the correct E values 
are used by the analysis engine. 
11) The GUI has been updated to ensure that if an ASCE 7 wind load is defined, 
then any other subsequent wind loads can also be accessed in the GUI. 
12) The GUI has been updated to ensure that if a Direct Analysis command is 
added, then the command line is continued in the normal fashion if it exceeds 
the normal line length. 
13) The GUI has updated the seismic parameters order grouping all the IBC codes 
for easier reference. 
14) The GUI has been updated to change the specification dialog box from 
'Cracked Section Property' to a more appropriate description of 'Property 
Reduction Factors' 
15) The steel design details for BS 5950:2000 in the GUI has been updated to 
provide a clearer description of the ESTIFF parameter. 
16) The GUI has been updated to correctly generate AIJ concrete commands for the 
FYMAIN and FYSEC parameters 
17) The GUI has been updated to ensure that when defining a GROUP command, 
setting a group criteria such as AX, then this option is correctly assigned to 
the command. 
18) Entities selected using the geometry selection cursor and then deleted are 
now removed from the entity list used in STD command files. 
19) The GUI has been enhanced to check the integrity of parametric model data 
blocks to ensure that incomplete or damaged blocks can be suitably handeled. 
20) The Start Page has been updated to support non ANSI character sets when 
translated 
21) The GUI has been updated to ensure that when a member is split by 
introducing a joint along its length, any member conectrated load defined in a 
refernce load case is assigned to the correct distance of a the new member 
segement if appropriate. 
22) The CIS/2 Import has improved the beta angle and material definition of 
members that are imported. 23) The Chinese steel database has been updated to 
GB/T 11263-2005. 
(C) Issued Addressed in the Post-Processing Mode (2) 
1) The Post Processing module has been updated to handle files with both primary 
and combination load cases such that if an aditional primary load case is added 
then it is not necessary to reload the file after running the analysis. 
2) The Post Processing display of steel design results has been updated to 
provide a better banding of results. 
(D) Issues Addressed in the Steel Design Mode (1) 
1) The steel designer mode has been updated to ensure that the program does not 
crash when selecting the menu item Member Design>Update Properties. 
(E) Issues Addressed Concrete Design Mode (7) 
1) The RC Designer module has updated the ACI 318-05 slab design brief to allow 
for smaller minimum cover of 0.75 inch and minimum aggregate size of 0.25 inch. 
2) The design of a slab in the RC Designer module using the ACI 318-05 code, the 
label used for the scale on the contour drawing of Required Steel was shown as 
mmฒ/m, while it is actually showing values in inฒ/in. The scale now displays the 
correct units. 
3) The RC Designer module has been updated to ensure that basic span/depth ratio 
limits are recalculated as the selected support types are changed. 
4) The RC Desiner module slab designs sections have been updated so that the 
first slab result line is un-constrained. 
5) The MS Word export function in the RC Designer module has been updated to 
ensure that any pictures included in the report are also exported. 
6) The ACI 318-05 module in the RC Designer has been improved the calculation of 
the basic length-to-thickness ratio of a span based on the support conditions at 
the span ends. Previously it only correctly identified the cases of cantilever 
and one-end continuous (as defined in Table 9.5(a) of the Standard), it did not 
consider a built in span end as continuous if there was not a span adjacent to 
it preventing rotation. This is now been changed to consider whatever the 
engineer has selected as the support condition in the supports table. 
7) The RC Designer has improved the method used to locate language resources. 
(F) Issues Addressed in the RAM Connection Mode (1) 
1) The RAM Connection module has been updated to improve the ability to create 
bracing connections. 
(G) Issues Addressed in the Advanced Slab Design Mode (0) 
(None)
(H) Issues Addressed in the Piping Mode (0)) 
(None)/p> 
(I) Issues Addressed in the Editor, Viewer and other modules (5) 
1) The SectionDBManager application has been updated to remove the UserDefined 
Sections database which is currently not supported by STAAD.Pro. 
2) DESCON is no longer supported by STAAD.Pro V8i. Note that it is recommended 
to use RAM Connection instead. 
3) The values of IY and IZ for sections imported from a SectionWizard export 
which were reversed have been corrected. 
4) The SectionWizard module Equivalent Section has been updated to ensure that 
it can use a valid license when available. 
5) The Editor has been enhanced to prevent crashing when closing after using the 
syntax check command from the tools menu. 
(J) Issues Addressed in OpenSTAAD (2) 
1) The OpenSTAAD results object has corrected the return data for the function 
GetNextLoadCase. 
2) The OpenSTAAD results object has corrected the return data for the function 
GetFirstLoadCase. 
(K) Issues Addressed with Printing (2) 
1) The User Report has been updated to ensure that Mode Shapes and Mode 
Frequencies can be included. 
2) The user report for AISC designs TRACK 0 has improved the reference 
information for the section profile. 
(L) Issues Addressed with licensing / security / installation (1) 
1) The installation has been updated to prevent warning messages being reported 
1) The installation has been updated to prevent warning messages being reported 
when installed on a Japanese OS workstation. 



7. What's New in STAAD.Pro V8i, Build 20.07.04 ( 30 October 2008) 
A) Issues addressed in the Analysis/Design engine (44)
1) The summary of applied forces and reactions in the output file for a Direct 
Analysis has been improved. 
2) The analysis engine has been updated to improve processing the name of member 
groups when used in the design checks 
3) The EC3 design code check has improved the calculation of the xLT factor used 
in the calculation of Mb,RD 
4) The effective length calculations for models defined with SET Z UP have been 
corrected for the DIN, EC3 DD and BS versions, BS5950 and NEN steel design code 
checks. 
5) The NS 3472 steel design code check has been updated to improve the 
calculations for circular hollow (pipe) sections. 
6) The AISC 360-05 design code check has improved the shear check calculation of 
Cv. 
7) The detailed output from an AISC 360-05 steel code check now ensures that the 
same classification used in the design is reported. On occasion a compact 
section was reported as slender, although it was correctly designed as compact. 
8) The DIN 18800 code checking module has been improved. Clause 2/123 specifies 
that if the shape factor (alpha) > 1.25, the moment capacity should be reduced 
by a factor of 1.25/alpha. However this was being done only for bending about 
the Y-axis. A check for the shape factor and corresponding reduction factor 
calculation has been added. Additionally, the shear capacity calculation has 
been revised to include (2/pi) factor for pipe sections. 
9) The AISC 360-05 design code checking for deflection has been corrected. 
10) The analysis of structures that included tapered members and the SET Z UP 
specification was improved in the last build of STAAD.Pro 2007, but not reported 
in the revision history. 
11) The buckling analysis using the advanced solver has addressed an issue which 
resulted in the buckling factor being computed as 1.0 lower than the actual. 
12) The South African steel design code check, SABS 0162, has been updated to 
correct the axial compression capacity calculation. 
13) The Canadian seismic load generator has been updated to ensure that the 
correct base shear is calculated. 
14) The analysis engine has been updated to include an error message if any 
temperature loading is assigned to curved beams 
15) The BS 5950:2000 design code check has been improved for wide flange 
sections with cover plates to ensure that the U_LT and V_LT are not set to 0 on 
a second check. 
16) The EC3 design code check has improved the calculations of shear areas of 
built up sections. 
17) The AS3600 design has been updated to include a warning message in the event 
of the required Ast> max Ast. 
18) The IS:456-2000 design of columns has been updated to include the minimum 
eccentricity as defined in clause 25.4 
19) The BS 5950:2000 design code check for tension members has been updated to 
include checking the ratio of applied moment over appropriate capacity for each 
axis as well as for the combined moment check as defined in clause 4.8.2.3 
20) The AISC ASD design code check has improved the calculation shear areas for 
HSST tube sections. 
21) The analysis engine has updated the processing of the PRESSURE parameter 
when applied to a curved member. 
22) The analysis engine has been updated such that when performing multiple 
analyses on a model. The shear modulus is maintained for each performed 
analysis. 
23) The calculation of Ss and S1 values for the IBC 2006 seismic parameters 
based on a zip code or longitude and latitude have been updated. 
24) The Canadian design code S16-01 has been updated to support the design of 
database HSS sections. 
25) The ASIC 360-05 design code check has improved the torsion capacity checks. 
26) The BS5950:2000 design code check has been updated to ensure that the value 
of slenderness reported for a section in tension is zero, rather than the value 
of the previously checked section. As slenderness is not checked for members in 
tension, this is only a reporting issue. 
27) The BS 5950:2000 design code deflection check has been updated to account 
for occasions when both 1990 and 200 checks are included in a model. 
28) The analysis engine has been updated to include a check to ensure that the 
member numbers are within the allowable limit. 
29) The track 2 output options taper I sections designed to BS5950:2000 has been 
updated. 
30) The DIN 18800 steel design code check now correctly sets the slenderness 
when the SET Z UP option is specified. 
31) The BS5950:2000 moment capacity checks have been updated to include any 
reduction that may result from clause 4.2.5.1 which limits this to 1.5*py*Z 
32) The output from a Chinese steel design has been updated to include the 
version of the checks that have been performed. 
33) The BS 5950 design code check has been updated to ensure that only sections 
defined as double angle will be limited by lambda_c of 30. 
34) The analysis engine has improved the method used for calculating the minor 
axis moment for tapered wide flange sections. 
35) The IS456 concrete design code has been updated to ensure that the 
representation of cantilever beams include the details of the mid span 
reinforcement design. 
36) The moment capacity checks for sections with 'ST' or 'RA' angle 
specification have been updated so that only the corresponding major axis 
moments will be used for LTB calculations. 
37) The data displayed in the output file has been updated such that when the 
material properties are printed, if not set, the default values are displayed. 
This was addressed in STAAD.Pro 2006 
38) The analysis engine has been updated to remove any cable pre-tensions or 
temperature loads that have been assigned but are no longer appropriate if 
during the analysis of the load case, the cable becomes inactive (i.e. defined 
as TENSION, but becomes compressive). Modification added to STAAD.Pro 2006 
39) The display of section modulii for the NS3472 steel design code check TRACK 
9 output have been corrected. 
40) The engine has been updated to ensure that the method used for establishing 
floors is consistent within the program, i.e. using the same tolerances 
throughout and correctly defines loading on beams defined with a FLOOR command 
in a reference load case. 
41) The AISC 360-05 steel design code check has updated the method for 
identifying members in tension such that the status is now defined based on the 
status of the axial force at the centre of the beam. 
42) The AISC 360-05 member selection deflection checking routine has been 
updated such that the estimated deflection for a new section is modified in 
proportion to the new moment of inertia about both major and minor axes rather 
than simply the major axis as was done previously. 
43) The ASIC 360-05 design code compression capacity check for single angle 
sections has been improved. 
44) The IBC 2003 accidental torsion load calculation routines have been 
improved. 
(B) Issues addressed in the Pre-Processing Mode (17) 
1) The GUI has been updated to ensure that incorrectly specified IBC commands 
are reported and removed if not corrected. 
2) The GUI has been updated to allow the definition of member weights to IBC 
load cases. 
3) The command that allows members to be renumbered has been updated to ensure 
that member lists defined in a selfweight command also get updated. 
4) The GUI has been updated to ensure that the Member Query dialog displayed the 
correct value of web thickness of channel sections. 
5) The GUI has been updated to ensure that it correctly saves the data defined 
in a CABLE ANALYSIS command. 
6) Minor update to description of seismic load factor option in the loading 
items dialog. 
7) The GUI has been updated to correctly add the commands for holes defined in a 
parametric mesh definition. 
8) The grid tool has improved the handling of importing DXF files. 
9) The GUI has update the orientation of Z shapes to correctly display them 
based on their principal axes rather than geometric axes. 
10) The member query dialog box has been updated to ensure that it displays the 
correct values for Indian T shaped sections. 
11) The Canadian timber section database has been updated with corrected SY 
values. 
12) The GUI has been updated to ensure that the user is informed that the move 
option is not available if objects have been selected using the Geometry cursor 
rather than the node, beam, plate or solid cursor. 
13) The GUI display of small loads has been updated to ensure that arrow heads 
are included in the printout of diagrams with small loads. 
14) The GUI has been updated to inform users if attempting to save a file that 
have not changed that they are doing so. If such a file has results, these will 
remain available for the remainder of the session, but will be deleted when 
opened in future and will require running the analysis. 
15) The snap node/beam function has improved the handeling of irregular grids 
when the dialog has been closed and later re-intilised. 
16) The Russian I shape databases has been updated to include the correct minor 
axis plastic moduli. 
17) The routines used in Parametric Mesher have been improved to identify nodes 
within a outer boundary and make them internal density points which the mesh 
will connect to thus creating better model connectivity. 
(C) Issued Addressed in the Post-Processing Mode (10) 
1) The Post Processing graphical display of support reactions has improved 
displays for models including compression/tension springs. 
2) The display of reactions in the GUI for supports defined with a multi-linear 
spring has been updated to ensure these values match those displayed in the 
tables. 
3) The Advanced SQL Query has been updated to correctly process the results of a 
steel design. 
4) The Design Results table in the Post Processing Mode has been updated to 
ensure that if the last design performed was that of a deflection check, then 
that is reported in the clause column of the table and also in the member query 
dialog. 
5) With SET Z UP defined, the beam stresses diagrams have been updated to 
display results for pipe sections. 
6) The values of corner stress for wide flange beams defined with a composite 
top have been improved. 
7) The SQL tools of Simple and Advanced Query have been updated to address a 
limitation previously introduced by the IBC 2003 command. 
8) The Advanced Query has been updated to support large models in excess of 200 
nodes/members. 
9) The post processing GUI has been updated to better display the stresses 
calculated on tapered tube sections. 
10) The display of reactions in the GUI for supports defined with a multi-linear 
spring has been updated to ensure these values match those displayed in the 
tables. 
(D) Issues Addressed in the Steel Design Mode (2) 
1) The steel designer mode has been updated to reintroduce the EC3(ENV) and 
Egyptian steel design briefs. 
2) The BS5950:2000 code check in the Steel Designer mode has been updated to use 
the correct effective lengths in both major and minor axes. 
(E) Issues Addressed Concrete Design Mode (6) 
1) RC Design has improved the BS 8110 column design such that when designing a 
circular column, the shape code was displayed in the bending schedule is 99,. 
Now it is displayed as either 67 (a continuous curve), or better code 75 
(specifically circular). 
2) The ACI 05 column design module has addressed an issue that prevented 
circular column ties being used. 
3) The RC Designer module has been enhanced to ensure that the tables that have 
extra sheets added are displayed when produced. 
4) The ACI-05 beam design in RC Designer now allows design briefs to be defined 
as required. 
5) The design of column sections to BS 8110 has improved the measurement of 
spacing from bars to link legs in order to work out which bars in a compression 
zone were restrained for the wide single-legged links. 
6) The RC Designer module has been updated to allow more than 8 bars per layer 
in beam designs. 
(F) Issues Addressed in the RAM Connection Mode (3) 
1) The RAM Connection mode has been ehanhanced so that it supports Beam/Girder 
connections with British sections. 
2) The RAM Connection mode has been enhanced to ensure that non-horizontal beams 
can be assigned connection briefs. 
3) The RAM Connection mode has improved the identification of section profiles 
when creating Beam/Girder joints. 
(G) Issues Addressed in the Advanced Slab Design Mode (0) 
(None)
(H) Issues Addressed in the Piping Mode (1) 
1) The load import routine of the Piping Mode has been improved to ensure that 
if new sets of results are created in the AutoPIPE export model, then these 
values are imported when requested. 
(I) Issues Addressed in the Editor, Viewer and other modules (0) 
(None)
(J) Issues Addressed in OpenSTAAD (3) 
1) The OpenSTAAD example ToAutoPIPE.VBS in the plug-in folder has been updated 
to warn if the model being exported includes double sections such as back to 
back angles which are currently not supported by AutoPIPE. 
2) A new OpenSTAAD function GetMemberPropertyEx has been added for returning the 
properties of taper members where the top and bottom flanges have different 
dimensions. 
3) A new OpenSTAAD function has been added to the application object, 
CreateIsotropicMaterialProperties. This takes the following parameters, string 
Name, double YoungsMod, double Poisson, double ShearModulus, dounle Density, 
double Alpha, doule CrDamp) 
(K) Issues Addressed with Printing (3) 
1) The User Report has been updated to ensure that loading data from UBC and IBC 
definitions can be included in a report. 
2) The User Report in RC Designer has been updated to be consistent with the 
main STAAD.Pro report format. 
3) The User Report has been updated to ensure that the Failed Members Table is 
printed when included in a report. 
(L) Issues Addressed with licenseing / security / installation (0) 
(None)



8. What's New in STAAD.Pro 2007, Build 03 ( 8 July 2008) 
A) Issues addressed in the Analysis/Design engine (48) 
1) The BS 5950:2000 steel code check has been updated so that the moment 
capacity value is better controlled using the TB parameter.
2) The BS 5950:2000 steel code check has been updated to include the CAN 
parameter to indicate members that are cantilevers for deflection checks. 
3) The analysis engine has been updated to calculate the shear areas for wide 
flange sections with cover plates on the top and/or bottom. 
4) The DIN 18800 steel design code check has been updated to ensure that the 
designs for groups of members correctly initialize all the required parameters. 
5) The Eurocode 3 steel design checks have been updated to ensure that if a 
deflection check is to be performed by setting the TRACK parameter to 4, then 
the member forces are not also checked. This should be done with a separate code 
check. 
6) The analysis engine has been updated to support User Section Tables that are 
located in a folder that requires a path defined such as :- START USER TABLE 
TABLE 1 "C:\My Documents\STAAD User Files\Example.upt" END 
7) The analysis engine has been updated to better calculate the load 
distribution of floor loads on inclined planes. The command now uses the area of 
the plane rather than the projected area of the plane. 
8) The BS 5950:2000 steel design code check has been updated to include a check 
that warns if a section being checked has been assigned with non-steel 
properties such as concrete in the analysis. 
9) The NEN 6770 steel design code has been updated to ensure that the correct 
section classification is assigned to wide flange sections. 
10) The BS 5950:2000 steel design code check has been improved when used with 
the SET Z UP command. In particular the values for effective shear modulus and 
the reported design shear ratios for major and minor axes were inverted. 
11) The Eurocode 3 steel design check for angle sections has been updated with 
the slenderness reported about the principal axes as opposed to the geometric 
axes reported earlier. 
12) The output of a BS 5950:2000 steel design code check has been updated to 
display the effective modulus as used in the design rather than simply an 
effective elastic or plastic property. 
13) The DIN 18800 steel design code check has been updated to ensure that the 
shear areas are calculated correctly for tube sections. 
14) The analysis engine has been updated to better accommodate data files that 
include references to sections that do not exist in the standard databases. 
15) The analysis engine has been updated for Cable Analysis where temperature 
loading has been assigned to non-cable members will now be considered. 
16) The AISC 360-05 steel design code has been updated to ensure that when the 
code check is run all parameters were set as required. 
17) The analysis engine has been updated to handle UBC load specifications in 
models which include MEMBER TENSION commands. 
18) The analysis engine has been updated to allow for MAT FOUNDATION commands to 
be used in conjunction with MULTI LINEAR springs defined in metric units. 
19) The analysis engine has been updated to report the same principal stress 
angles for plates as is reported in the post processor and plate query dialog. 
20) The output of an API code check has been update to reflect the code that it 
based on. 
21) The BS 8110 shear wall design has been supplemented with the parameter 
TRACK. It can take a value of 0 for a summary in the output or 1 for a more 
detailed output. 
22) The BS 5950:2000 steel design code check has been updated to ensure that 
there is no reduction in the value of py for load cases where the section is in 
pure tension. 
23) The BS 5950:2000 steel design check has been updated to include a clause 
4.9.3 check on members which have no axial force. 
24) The BS5950:2000 steel design code has been updated to ensure that minor axis 
shear checks are included if a section is subject to minor axis bending only. 
25) The AISC ASD now includes a check if h/tw of a beam exceeds 970/sqrt(Fy), if 
so the design on that beam stops and a message indicating this is written in the 
output file. 
26) The BS 5950:2000 steel design check has been updated for box and circular 
hollow sections to ensure that the moment capacity checks are always performed. 
27) The Eurocode 3 steel design output has been updated to ensure the correct 
shear areas are displayed for box and circular hollow sections. 
28) The StaadName of the tube section TUB45453, in the American steel database 
has been corrected. 
29) The analysis engine has been updated to better handle REPEAT LOAD commands 
when the data file contains a number of UNIT commands. 
30) The IS 893 seismic calculations have been updated to ensure that the 
calculation of Ah = (Z/2)*(I/R)*(Sa/g) 
31) The analysis engine has been update to ensure that both MEMBER TENSION and 
MEMBER INACTIVE commands are not used in the same file. 
32) The AS 4100-1998 steel design code check has been updated to include better 
checks as per clause 5.1 Design for Bending Moment, 8.4.4 Out of Plane bending 
(both 8.4.4.1 Compression Members and 8.4.4.2 Tension Members). See the 
technical reference manual for more information. 
33) The AISC ASD now includes a check to ensure that Qa (Effective area/Actual 
area) is not greater than 1. This value is used in equation E2-1 to reduce 
capacities of slender sections. 
34) The AISC 360-05 steel design code check has been updated to improve the 
axial compression capacity calculation of user defined T sections. 
35) The AISC 350-05 steel design code check has been updated to improve the 
calculation of the bending capacity of HSS rectangular sections with slender 
flanges. 
36) The BS 5950:2000 steel code check has been updated to ensure that the 
automatic calculation of MX, MY and MLT parameters operate on members formed 
where the joint list has two or more nodes starting with the same number, e.g. 
10 and 11 or 20 and 21 
37) The AISC and Canadian design codes have been updated to support the design 
of Canadian HSS sections. 
38) The Eurocode 3 steel design code output has been updated to correctly 
display the name of tube sections with the prefix TUB. 
39) The AISC 360-05 design code check has been updated for angle sections such 
that the slenderness and section capacities are calculated based on the 
principal axes, unless AXIS parameter is set to 2. 
40) The analysis engine has been updated to support all the physical member 
loading that can be defined in the GUI. 
41) The BAEL 91 concrete design has been updated to show the correct code and 
version in the output file. 
42) The EC3 routine for selecting sections using the SELECT OPTIMIZE has been 
improved and may result in identifying more efficiently utilised sections. 
43) The ASIC LRFD steel code check has been updated to ensure that the 
interaction of torsion, shear, flexure and/or axial force is limited by the 
Equation 7.2-1 only when the torsional moment is greater than 0.01 kip-in. 
44) The AISC ASD steel design code check has been updated for the MEMBER 
SELECTION design output not to output warnings of exceeding the allowable axial 
stress for all but the last section profile that is checked for each member. 
45) The IS 13920 concrete design has been updated to improve the shear design of 
columns. 
46) The AISC 360-05 steel design code has been updated to correctly account for 
the UNL parameter setting. 
47) The BS 5950-Pt5 Cold formed steel section design has been updated to correct 
pipe section designs such that the moment capacity is calculated according to 
clause 5.2.2, Mc = p0 * elastic modulus. 
48) The BS 5950:2000 steel design code check has been updated to include 
additional checks on members that are subject to axial tension and biaxial 
bending considering each axis independently. 
(B) Issues addressed in the Pre-Processing Mode (40) 
1) The GUI has been updated to better handle the undo action after using the 
Mirror tool. 
2) The Translation Repeat graphical tool has been updated to include creating 
copies of joint loads that are part of the selection being generated. 
3) The Canadian steel database has been updated with section properties in 
metric units. 
4) The GUI has been updated to better handle the scaling of load icons using the 
mouse scroll wheel when the basic units are set as 'English' and the model has 
metric loading. 
5) The geometry tool Generate-Rotate has been updated to better handle rotation 
of structures where the axis of rotation passes through the model. 
6) The GUI has been updated so that the Geometry Cursor is better able to select 
surface objects 
7) The GUI has been updated to ensure that when editing the parameters from a CP 
65 concrete code definition, the values of MAXMAIN and MINMAIN select the values 
specified. 
8) The GUI has been updated to display a description for the IS 800 design 
parameter THETA as 'Angle of inclination of lacings (between 40 70 degrees) 
9) The GUI has been updated to improve the tool Geometry>Merge Selected Members' 
so that any uniform distributed member loading is re-defined on remain in the 
same location on the new single member. 
10) The tool 'Check Duplicate>Nodes' has been updated such that if duplicate 
nodes are found and merged, then all the node loads on the merged nodes are 
retained. 11) The plastic section properties of the section profile 
HSST12x12x0.625 in American steel database has been updated 
12) The 3D rendered view has been updated to better display plates with varying 
thicknesses. 
13) The GUI has been updated to allow AISC N690 steel design parameters and 
commands to be assigned. 
14) The new feature in the User Table for Angle Sections to calculate the radius 
of gyration about the principal axis added in STAAD.Pro 2007 Build 01 has been 
updated to account for the small values generated with very small angles. 
15) The GUI has been updated to ensure that editing the initial location of a 
moving load defined in a load case does not cause the program to lock. 
16) The GUI has been updated to ensure that the creation of an IBC 2006 seismic 
load definition will always contain sufficient data for it to be added to a 
primary load case. 
17) The GUI has been updated to ensure that creating an SRSS load combination, 
the correct syntax is created in the data file using the minus as defined in the 
Technical Reference manual. 
18) The GUI has been updated to better handle renumbering of plate elements. 
19) The GUI has been updated to better recognise the steady state harmonic force 
input commands and not display them as errors while opening a file with valid 
commands. 
20) The GUI has been improved in the method used for saving the data of solid 
(brick) elements. 
21) The GUI has been updated to ensure the program does not freeze when trying 
to add the Buckling Analysis command from the main Command>Analysis menu. 
22) The IBC 2006 option has been added to the menu Commands>Loading 
>definitions>Seismic Loading. 
23) The tool in the menu Geometry>Connect Beams Along>X axis has been updated so 
as not to on occasion cause the GUI to crash. 
24) The GUI has been updated to support user table names of up to 36 characters. 

25) The GUI has been updated to support SGR parameter values of 3 and 4 for an 
EC3-BS specification. 
26) The GUI has been updated so that the Member Specification dialog box, 
Partial Moment Release values can only be defined if the relevant option is 
selected. 
27) The deletion of load cases in the GUI is a non undoable operation and will 
clear the undo list. 
28) The Loads and Results sheet of the Diagrams dialog box has been updated to 
ensure that the Beam Forces, Axial, Intensity option of setting the No. of 
Values can only be modified if the option is selected. 
29) The specification of a Pushover Definition in the GUI has been updated to 
include a integrity check of the Critical Damping to ensure that only positive 
values are entered. 
30) The GUI has been updated to better handle the specification of offsets 
assigned to the ends of physical members. 
31) The GUI has been updated with the menu item View>Structural Tooltips Options 
to include the unit of time for the delay setting. 
32) The menu item Commands>Miscellaneous>Set Displacements has been updated to 
include the unit specification. 
33) A menu item has been added for adding a Pushover Definition in the Modelling 
Mode menu, Commands>Loading>Definitions>Pushover… 
34) The Support dialog box has been updated to allow multilinear support 
definitions to be assigned to nodes which have FIXED BUT supports already 
defined with a spring support. 
35) The Seismic Definitions in the Loads dialog has been updated to ensure that 
all codes display the time unit for definitions of period. 
36) The GUI has been updated to better handle the deletion of MEBER CABLE 
commands so that other instances of the command can be added without causing a 
problem with the GUI. 
37) The GUI has been updated to support load combinations which include 
references of up to 500 primary load cases. 
38) The geometry generation grid tools Snap Node/Beam, Snap Node/Plate and Snap 
Node/Solid have improved the import of grids from GRD and DXF files 
39) The tool insertion of opening into surface objects has been updated to 
prevent causing the GUI to crash. 
40) The undo procedure for replacing offset commands has been updated to ensure 
that if the command is retrieved, the appropriate units of the offset are also 
retrieved. 
41) The Backup Manager has been updated to improve the option to scroll back to 
a previous saved version. This option now works with files that include spaces 
and / or stored in folders with spaces in the path. 
(C) Issued Addressed in the Post-Processing Mode (11) 
1) The Steel Design Check Ratio table in the Post Processing Mode has been 
updated to include the critical load case and the table rows can be sorted by 
the ratio by clicking on the Ratio column heading. 
2) The Post Processing Mode has been updated to ensure that entering the 
Beam>Unity check Page does not occasionally cause the programme to crash 
3) The simple query tool (Tools>SQL Query>Simple Query) that allows results to 
be searched, has been updated so that when a query in the solid stress table is 
defined and edited, the defined items are displayed in the query condition 
editor. 
4) The Post Processing graphical view of plate contour maps has been updated to 
ensure that when load cases or views are changed, the diagrams are updated 
immediately to reflect this. 
5) The member query dialog box has been updated to ensure that if post analysis, 
a modification has caused the analysis results to be deleted, then the Steel 
Design sheet, if present, is removed. 
6) The Post Processing Mode has been updated to prevent access to model 
generation tools from the toolbar icons. These should only be accessed in the 
Modelling mode. 
7) The Post Processing Mode has been updated to ensure that when a contour map 
of plate Global Moments is requested, if a valid set of results is available 
they will be displayed. 
8) The Member Query dialog has been updated to correctly display the member 
section forces for Indian channel and T sections. 
9) The Post Processing Mode has been updated to ensure that the Beam, Unity 
Check table displays the ratio for all the members designed in the last MEMBER 
CHECK or MEMBER SELECTION command. 
10) The Post Processing Mode has been updated with a correction to the 
calculation in the menu item 'Report>Column Transfer Force' 
11) The Post Processing Plate Centre Stress table has been updated to ensure 
that all calculated results are displayed. 
(D) Issues Addressed in the Steel Design Mode (2) 
1) The connection deign for IS 800 in the Steel Design Mode has been updated to 
improve shear connections for beam to beam connections. 
2) The detailed output for design of members to BS 5950:2000 has been updated to 
include the correct label 'Moment of Inertia about Minor Axis' for Iyy. 
(E) Issues Addressed Concrete Design Mode (4) 
1) The Concrete Design Mode has been enhanced so that the graphics windows, 
tables and dialogs reflects the current Windows theme. 
2) The Concrete Design Mode has been updated to ensure that only suitably 
defined prismatic sections can be added to design groups. 
3) The Concrete Design Mode has been updated to ensure that valid results are 
available before trying to display them in the results table. 
4) The Concrete Design Mode has been updated to ensure that if selecting the 
menu item 'Brief>Design Brief', the program first checks that the current design 
group has a valid design group defined before trying to open it. 
(F) Issues Addressed in the RAM Connection Mode (2) 
1) The RAM connection Mode has been enhanced to allow bracing members in braced 
connections to be defined with pipe or HSS sections. 
2) The following confirms the limited range of 8 connection types that can be 
designed without access to a full RAM Connection license:- Basic DA BCF Bolted 
Basic DA BCF Welded Basic EP BCF Bolted Basic EP BCF Welded Basic DA BCW Welded 
Basic EP BCW Welded Basic SP BCF Basic SP BCW 
(G) Issues Addressed in the Advanced Slab Design Mode (1) 
1) The Advanced Slab mode has been updated to ensure that all the objects 
selected are included in the RAM Concept model. 
(H) Issues Addressed in the Piping Mode (2) 
1) The Piping Mode has been updated to correctly convert forces imported from an 
ADI file when the GUI is set up in metric units. 
2) The Piping Mode has been updated to include the default file type *.ADI in 
the Open dialog. 
(I) Issues Addressed in the Editor, Viewer and other modules (1) 
1) The installation has included the files necessary to launch the online help 
from the Advanced Meshing application. 
(J) Issues Addressed in OpenSTAAD (1) 
1) The OpenSTAAD module has been updated to allow the example files to be used. 
(K) Issues Addressed with Printing (2) 
1) The User Report has been updated so that if any value is displayed in 
exponentional format, then the data is displayed with a + or - symbol between 
the E and exponent value, e.g. 1.2345E+06. 
2) The User Report has been updated to ensure that if a steel design output is 
included, then the report includes the detail of the compression capacity. 
(L) Issues Addressed with licenseing / security / installation (1) 
1) The installation has re-introduced the association of the STD file extension 
with STAAD.Pro allowing files to be displayed with the STAAD.Pro icon and can 
launch STAAD.Pro by double clicking on them.> 



9. What's New in STAAD.Pro 2007, Build 02 (14 September 2007) 
Issues addressed in the Analysis/Design engine 
1) The BS 5950 design has been updated to ensure that the moment capacity is 
correctly calculated when the section classification of class 2 compact and 
class 3 semi compact limits cross.
2) The FLOOR LOAD command has been corrected for use on inclined floors
3) The application of spring supports on solid objects (i.e. 5 to 8 noded 
bricks) has been improved to ensure a correct analysis 
4) The UBC / IBC load generators corrects an un-necessary over estimation in 
weight. 
5) The IBC 2006 provisions for the static seismic loading method have been added 
to the supplement the 2000 and 2003 versions previously implemented. 
6) The RESPONSE SPECTRUM command has been enhanced to create response spectra 
based on the IBC 2006 provisions for seismic loading. 
7) The Norwegian steel design, NS3472 has been updated to better support 
sections defined in user tables. 
8) The minor axis shear capacity calculated for the AISC Unified code, ANSI/AISC 
360-05 have been corrected. 
9) The calculation of the seismic loading from the Canadian NRC - 2005 code has 
corrected the reading of the importance factor parameter. 
10) A correction has been introduced for the calculation of response spectra 
calculated using the Advanced Solver. 
11) The output report for EC3-2005 now correctly includes missing table headers. 

12) The output report for AS 4100 now displays the requested level of output 
defined by the TRACK parameter. 
13) A design to AISC ASD for plate girder sections where h/tw exceeds 
970/sqrt(Fy) are not covered by STAAD and a warning is provided. 
14) Support information displayed at the end of the output files has been 
updated to reflect the current support arrangements. 
15) BS 5950, design of members with very small / no axial loads improved to 
ensure that axial effects are not considered. 
16) Property (SZ) calculation for user defined angle has been corrected. 
17) FLOOR WEIGHT calculation for UBC, IBC, IS:1893 has been corrected. 
Issues addressed in the Pre-Processing Mode 
1) The GUI has been updated to correctly interpret the missing mass and ZPA 
parameters, not reporting a correctly defined command as incorrect. 
2) The renumbering function has been improved to ensure objects are not removed 
in the renumber process. 
3) The undo function has been updated to handle wind loads commands deleted in 
the GUI. 
4) The GUI has been updated to support loading defined on physical members 
5) The US AISI cold formed database area of section 4CU1.0x072 has been updated. 

6) Creating openings in Parametrically defined slabs has been updated to ensure 
the data file integrity is maintained. 
7) Calculation of user table properties of general sections using profile points 
in differing units from the model has been corrected. 
8) Update of the 'Column Transfer Forces' report prevents a crash if no load 
cases are selected and 'Insert to Table' button is clicked. 
9) The TB paramEter has been re-introduced intro the parameter list in the BS 
5950 steel design dialog. 
10) The GUI has been updated to support having the tool Check Multiple 
Structures dialog open whilst merging nodes. 
11) The display of moving loads defined in external files has been corrected. 
12) The tool to check multiple structures has been enhanced to operate in a view 
that is not the whole structure view. 
13) The Korean steel section database has been enhanced with corrected plastic 
section moduli. 
14) The Canadian steel section database has corrected torsional values added for 
wide flange sections. 
15) The GUI has been updated to support multiple instances of ELEMENT INCIDENCE 
SHELL. 
16) The GUI has been updated to correctly read the aluminum database section 
properties. 
17) The GUI has been updated to support the Columbian seismic provisions. 
18) The GUI has been enhanced to allow thermal loads to be assigned to solids. 
19) The creation of a Pushover definition in the GUI has been updated to allow a 
large number of load steps to be defined. 
20) The move operation has been improved to reduce the instances of duplicate 
members being formed. 
21) The GUI tool to calculate section properties for UPT angles has been 
corrected to calculate values about the principal axes rather than the geometric 
axes. 
22) 3D Rendered views of models with extremely small members, <1mm are now 
accounted for. 
23) The section outline drawing of tapered square sections has been improved. 
24) The parameter 'METHOD' added to list of available parameters in the GUI. 
25) The Canadian steel section database corrected. 
26) 3D rendering of castellated beams with a base unit setting of metric is now 
supported. 
27) Processing of temperature loads on solids defined in reference load cases is 
now supported. 
28) The description of the Canadian CB parameter has been corrected in the 
design dialog box. 
29) The GUI displayed value of uniform moment load on beams has been corrected. 
30) Tapered I section dialog has updated labels for the flanges. 
31) The GUI display of the FLOOR LOAD command has been corrected for one-way 
load distribution. 
32) The IS 800 parameter CAN is now correctly labeled in the design dialog box 
as 'Deflection Check' parameter. 
33) The IS 800 parameter COG is now correctly labeled in the design dialog box 
as CG of channel section parameter. 
34) The menu item Commands>Specifications now launches the correct dialog box. 
35) The section outline representation of UPT General sections has been improved 
to draw about the neutral axis. 
36) Values for double I sections are now displayed from the Properties dialog 
box, Values table. 
37) The Select menu has been enhanced so that Surface objects can be selected 
'By List'. 
38) The GUI has been updated to ensure that when AASHTO (LRFD) code has been 
selected in the Design dialog, parameters from that code are added to the STAAD 
file. 
39) The automatic creation of additional shearwalls using the translational 
repeat tool now copies defined holes defined in the wall. 
40) Creation of views with physical members has been enhanced. 
41) The GUI has been updated to correctly handle the TXT parameter of a Pushover 
definition. 
42) STP parameter is introduced in AISC-ASD code. 
43) Read/Write operation for STEADY STATE analysis commands were added. 
44) Program crash while renaming grid has been fixed. 
Issues addressed in the Post-Processing Mode 
1) Calculation of 'Column Transfer Forces' from the Report menu has an updated 
warning when members not lying in a plane have been selected. 
2) The corner stresses reported in the Beam Stresses table and Stress Diagram 
updated for composite wide flange sections to display the values in the extreme 
corners of the concrete at the top and the corners of the wide flange at the 
bottom. 
3) The member query dialog display of bending moments has been improved. 
4) If instabilities are generated from an analysis with the Advanced Solver, a 
page has now been added to the Post-Processing Mode. 
5) The data from Mode Shape and Participation tables can now be copied onto the 
clipboard and be pasted into other documents. 
6) Stress contours for surface objects has been improved to allow display in the 
Post-Processing Mode. 
7) The Static Check table in the Post-Processing Mode has been corrected for 
when metric units are used. 
8) The moment diagrams for selfweight on tapered sections have been improved. 
9) User interface which allowed property/support/member release update in 
Post-Processing mode (which leads to analysis result become invalid) has been 
deactivated. 
Issues addressed in the Steel Designer Mode 
1) Single step design result table has been updated to reflect correct 
design/utilization ratio. 
Issues addressed in the Editor, Viewer and other modules 
1) The Bridge Deck Mode has been improved to ensure that once the menu item 
'Loading>Influence Surface Generator' is disabled while the generator is in 
operation to prevent attempting to run it again whilst it is in operation. 
OpenSTAAD 
1) A new OpenSTAAD application object function has been added, 
CreateIsotropicMaterialProperties. This takes the following 7 variables as 
input:- string Name, double E, double Poisson, double G, double density, double 
Alpha, double Cr Damping The return value is of type long and is either 1, if 
this has updated an existing material or 0 if a new material has been created. 
Issues addressed in Printing 
1) The logo displayed in the User report updated with the Bentley logo. 
Issues addressed in RAM Connection Mode 
1) The RAM Connection interface has been enhanced to support the use of WT 
sections as brace members. 
2) The design of Smart Flange Plate connections in the RAM Connection Mode now 
ensures that the moment is correctly transferred to the connection. 
Issues addressed in licenseing / security / installation 
1) The licensing system has been enhanced to support 'Node Locked' XML Licenses. 

2) The licensing system has been enhanced to allow usage of checked out license 
with the workstation not able to connect to the server. 
3) Installation improved to allow gaps in the path to the installed folder. 
Issues addressed in Documentation 
1) The figure for Example 8 in the Examples manual has been corrected. 
2) Minor errors in the American Examples manual have been corrected. 
3) The preview image of Examp19 has been corrected to reflect the actual data 
file included in the installation. 
4) The International Codes manual section 9 B-5 has had the spelling mistakes 
corrected. In the Technical Reference Manual, dupliactions in sections 3.6, 
5.23, 5.31.1 and 5.31.2.1 have been removed. 
5) What's New issue2006-1004.6.2 corrected to remove AISC UNIFIED reference. 
6) Section 5.11 of the Technical Reference updated to clarify limit on the node 
number is to 6 digits. 
7) Technical Reference manual section 5.20.5 updated to clarify that the ASSIGN 
PROFILE command does not operate on cold formed steel, aluminum and timber 
sections. 
8) Section 4A of the International codes manual has been updated to correctly 
report that concrete design is performed to GB50010-2002. 
9) The Technical Reference manual section 2.14.13 has been updated with a table 
reference. Section 5.20.7 title has been corrected. 
10) The reference in the online help to the Canadian steel code was corrected to 
reflect the implemented version which is S16-01. 
11) Section 4B of the International codes manual has been updated to correctly 
report that steel design is performed to GB50017-2003. 
12) Table 2.1 was updated to include STP and SHE parameters. 
13) Section 2.14.10 was updated to change table reference to 2.5 
14) Section 5.32.10.1.4 was added to describe response spectrum as per IBC-2006 
15) Section 2.17.8 was updated. 



10. What's New in STAAD.Pro 2007, Build 01 (29 June 2007) 
A) Issues addressed in the Analysis/Design engine 
1) For concrete column design to IS:456-2000, includes a requirement for 
calculation of additional moments outlined in the Notes section of clause 39.7.1 
on 15) Section 2.17.8 was updated. 
2) The engine can now use cold formed steel sections from a non US database with 
other section properties.
3) The torsion design of HSS sections to the AISC Unified code has been improved 
in the calculation of the status of compact flanges. 
4) The AISC Unified code has been updated to allow designs on T sections. 
5) It is now possible to define multiple instances of ELEMENT WEIGHT blocks in a 
seismic definition. 
6) The engine has been modified so that if a surface pressure load has been 
incorrectly defined with the magnitude of the load before the direction, this 
will no longer cause the engine to crash, but will be reported as an error. 
7) Steel design to IS:800 has been corrected for checking groups of members that 
have compression and tension. 
8) The shear wall design to IS:456 has been updated. 
9) The shear wall design to BS 8110 has been updated. 
10) The design to the South African steel code has been updated to correct 
identification of single and double curvature bending. 
11) The AISC ASD steel design code has been updated to correctly design angles 
that are defined with the AXIS parameter to specify design of the geometric / 
principal axes. 
12) The AISC ASD steel design code has been updated to allow for the design of 
Chinese HW sections. 
13) The shear wall design to the Indian code has been updated. 
14) In order to check for deflection limits of cantilever beams, a CAN paramater 
has been added for the codes:- 1. IS 800, 2. AISC Unified, 3. South African, 4. 
BS 5950, 5. EC3, 6. EC3 BS 
15) A new parameter has been added to the AISC ASD code, STP to identify whether 
user table wide flange sections should be designed as welded or rolled. Set STP 
1 for rolled or STP 2 for welded. 
16) The BS 5950-p5 cold formed design code has been updated to allow sections 
defined in the Lysaght cold formed database to be designed 
17) The shear resistance calculations of double channel sections has been 
improved to account for both sections in AISC ASD and LRFD design checks. 
18) The Floor Load command has been updated for inclined floor areas such that 
the load intensity is now calculated on the actual area rather than the 
projected area.
B) Issues addressed in the Pre-Processing Mode 
1) If the data file contains the ALL parameter to assign properties such as 
materials to all beams, this was being replaced with a member list if a new 
member was added. This has been addressed. 
2) IS:1893 spectrum loading dialog has been updated to allow the spectrum and 
interpolation types to be specified. 
3) Clarification that the move command does not work when using the geometry 
cursor selection. 
4) Preview surfaces has been improved to indicate changes in edge divisions. 
5) User Table GENERAL sections which were based on a drawn section profile (and 
stored with Profile Point data) has been improved for sections where the data 
extends over more than one line. 
6) ASCE-7 Gust Factor calculation has been improved. 
7) INACTIVE specification can be toggled on members from the Specification 
dialog. 
8) Print option removed from Physical Member Query dialog box. 
9) Surface Object data is now checked to ensure that it does not exceed the 
maximum line length in the data file. 
10) The saving of the seismic load generation as per IS1893:1984 by the GUI has 
been improved. 
11) UBC definitions deleted in the GUI are now removed entirely from the data 
file. 
12) A number of HSS section names have been updated to match the sections 
published names (note that this is only for the published names in the 
databases, not the name used by STAAD) 
13) Published section names for HSSP and HSST sections have been updated to 
match published names to assist in linking to DESCON connection designs. 
14) The ASCE-7 wind loading generator preview of the wind pressure profile has 
been improved. 
15) The Recent File list in the Open Browse dialog has been updated so that if 
the file path is truncated, it is displayed correctly. 
16) STAAD.Pro now locks the picture file (and any work files) for the lifetime 
of the structure. This should avoid having 2 processing accessing the same 
picture file. It also searches for an unused name for a work file, preventing 
any cross-structure problems. 
17) The undo operation has been enhanced to operate with the addition of a ASCE 
7 wind load command. 
18) The Lysaght cold formed database of C sections has been corrected. 
19) The Korean wide flange section database has been updated removing the 
duplicate W300x300x94 section. 
20) The areas of sections in the 'Channel without lips' in the American Cold 
Formed Sections database (AISI) have been corrected. 
21) The GUI has been updated to correctly report valid range of CMY and CMZ 
parameters for the Canadian steel design code. 
22) The zone factor when selecting Allahabad city has been corrected in the IS 
1893 seismic definition dialog. 
23) The GUI has been modified so that the AISC Unified code parameters can be 
added graphically. 
24) The GUI has been updated so that if the One Way Loading with the Towards 
option is modified and the file saved, the modification is also updated. 
25) The Response Spectrum sheet of the Load Items dialog has been updated to 
ensure that the Add button is activated correctly. 
26) The GUI has been modified to accommodate deletion of members loaded with 
wind loading 
27) The GUI has been updated to allow STAAD files with incorrectly defined 
loading data to be parsed and the errors displayed rather than causing the GUI 
to crash. 
28) The preview of floor loading has been updated to ensure that the loading 
condition defined by the command is correctly reflected in the graphics. 
29) The browse button in the New Wizard dialog box has been improved to operate 
correctly when the path has been set to a drive root folder. 
30) Removing load items from physical members displayed in the Physical Member 
Dialog box has been improved, 
31) Removing load items from regular members displayed in the Member Dialog box 
has been improved. 
32) The GUI has been updated to account for STAAD title lines that incorrectly 
exceed 79 characters 
33) Adding Seismic Load Definiitions in the GUI has been improved under the 
condition where a primary load case has already been defined, which previously 
wouold have caused the program to close prematurly. 
34) The editing of Generated (Moving Load) loadcases has been improved so ensure 
that additional load cases are included correctly. 
35) The flange thickness of the US section W8x17 has been corrected to 0.308 
inches in the AISC database. 
36) The Canadian steel database has been updated with HSS round and rectangular 
sections. 
37) The option to create double wide flange sections from the standard steel 
databases has been clarified in that the spacing to be provided is the spacing 
between the ends of the flanges. 
38) The Surface Object has been added to the list of objects that are selected 
with the Geometry cursor. 
39) The footing design in the analysis engine has been discontinued. Note that a 
comprehensive foundation solution which includes detailed footing design is 
available using the STAAD.foundation application. 
C) Issues addressed in the Post-Processing Mode 
1) The values of cut lines through plates for metric units has been corrected. 
2) Results of files containing IBC 2003 commands can now be read with the 
Tools>SQL Query functions. 
3) Plate>Results Along Line values corrected if the units are metric 
4) Generated lodcases that include additional loadcases are displayed correctly 
in the post processor mode. 
5) Results of Australian concrete column design is now available in the Member 
Query dialog. 
6) It is now possible to copy the values in a Mode Shape table that is generated 
from a dynamic analysis. 
7) The Surface Object Query dialog has been updated to correct the displayed and 
printed values of FX and FY shown on the Forces sheet. 
D) Issues addressed in the Steel Design Mode 
1) Steel Designer AISC ASD results updated for pipe sections. 
2) The AISC steel designer now supports design of Chinese H sections. 
3) The Steel Designer Brief Dialog boxes have been updated to ensure that the OK 
and Cancel buttons are visable without having to hover over their locations. 
4) The Steel Design briefs dialog have been updated so that all the buttons are 
visible without having to hover over their locations. 
5) The EC3 design has been updated to operate in the Steel Designer Mode. 
E) Issues addressed in the Concrete Design Mode 
1) Pictures taken in RC Designer are stored in a format that allows multiple 
sessions of RC Designer to operate and not impinge on each other. 
2) BS8110 column designs improved when a side sway load case is defined. 
3) The IS456 design code has been improved removing a superfluous check for 
minimum area that caused beam designs to crash. 
4) Designs of beams / columns and slabs to BS 8110:1997 incorporating amendments 
1,2 and 3, needs to use material notations as defined in BS 8666:2005. The 2000 
version of 8666 has been withdrawn. 
5) The RC Designer module has improved its use of USL (now called Structural 
Passport) licenses 
6) There has been a general improvement in the internal functionality for taking 
pictures. 
F) Issues addressed in the Editor, Viewer and other modules 
1) The section database manager can now operate with the operating system set to 
European regional settings (using a comma as the decimal marker) 
2) Updated IEG Licensing allows use of STAAD.Pro licenses during down periods of 
the SELECT License server. 
3) Macro to create AutoPipe NTL batch files updated to use STAAD database 
sections using either STAAD or Published names. 
4) The Component Design Mode has been removed from STAAD.Pro GUI 
G) OpenSTAAD 
1) The OpenSTAAD application object has a new function GetPublishedProfileName 
which returns a string with the published property section name when the 
function is given the STAAD property name and the country code (see OpenSTAAD 
manual) 
2) The OpenSTAAD function GetBeamPropertyAll has been enhanced to ensure that 
flange and web thicknesses are obtained for user sections. 
3) The OpenSTAAD function GetSteelDesignResults function updated to operate with 
the latest results versions of STAAD.Pro results data files. 
H) Issues addressed in Printing 
1) The printing routines have been updated to allow printing and print 
previewing the Surface Forces Along X and Y options. 
2) The height v intensity table is now included in a user report for wind load 
definitions. 
I) Issues addressed in Section Wizard 
1) Canadian Tee section shape database updated correcting flange and web 
thicknesses. 
2) The parametric section data input for rolled wide flange sections in Free 
Sketch has been updated to match the preview image. 
3) The Canadian T section database has been updated to report the correct 
location of the centre of gravity. 
4) ASTM WT sections database corrected to show sections with parallel flanges. 
5) Section property descriptions updated. 
J) Issues addressed in Advanced Slab Design 
1) Advanced Slab Designer improved to operate with Surface objects as well as 
collections of plate elements



11. What's New in STAAD.Pro 2006
Please refer to the document Revision_History_2006.txt located in this folder 
(e.g. C:\SProV8i\STAAD) 
(eof)
 
Last updated : 2011/09/16 14:58:00 ฉ 2011 Bentley Systems, Incorporated. Legal 
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