Revision History

This document is organized in a way that newer revisions appear at the top. Therefore, section numbers will keep decreasing from top to bottom.

• What's New in STAAD.Pro 2005, Build 1003.US.REL?
• What's New in STAAD.Pro 2005, Build 1002.US.REL?
• What's New in STAAD.Pro 2005, Build 1001.US.REL?

What's New in STAAD.Pro 2005, Build 1003.US.REL?

Errors corrected in the Modeling mode since STAAD.Pro 2005, Build 1002.US.REL

1. There was an error in selecting and adding a joist from the American Joist tables of the General - Property page. A joist which is different in name from the selected one would get added.
2. For members assigned a T-shape from the AISC tables, modifying the section property through the Tools-Query-Member-Property page caused the program to crash.
3. If one or more component primary cases of a LOAD COMBINATION or REPEAT LOAD case happen to contain PLATE TRAPEZOIDAL loads, and the component cases are specified with negative load factors, the arrows of the plate trapezoidal loads were not drawn in the right direction. They did not account for the negative sign of the load factor.
4. For pipes specified through a User Table, the Torsional Constant value (IX) displayed in Tools-Query-Member-Property box, and in the General-Property-Values box were wrong.
5. In some situations, the material data (E, Poisson's, Density, etc.) failed to get assigned to members, plates and solids.
6. Even when the material data is assigned to surface entities, the Select - By Missing Attributes - Missing Material data would highlight those surfaces as having no material information.
7. Modifying pre-assigned moving load input data led to some errors.
8. There was an error in the display of distributed member loads generated from the ONEWAY LOAD command.
9. Modifying pre-assigned time history harmonic load data led to some errors.
10. The "View Selected Objects Only" facility of the View menu did not work.
11. A file containing errors in the data for the SPRING TENSION command would cause the program to crash when the file is opened.
12. When members are renumbered through the Geometry-Renumber-Members facility, the renumbering failed to take place in some data blocks such as under GROUP DEFINITIONS. The member group name remained associated with the old member numbers. Consequently, the list of members associated with those group names would get corrupted leading to errors when the file was saved, closed and later re-opened.
13. When plates are renumbered through the Geometry-Renumber-Plates facility, the renumbering failed to take place in some data blocks such as under PLATE PRESSURE LOADS. The loading remained associated with the old plate numbers. Consequently, the plate list associated with those loads would get corrupted leading to errors when the file was saved, closed and later re-opened.
14. For members which are assigned a TRAPEZOIDAL section, the moments of inertia values (IY & IZ) displayed in Tools-Query-Member-Property box, and in the General-Property-Values box were wrong.

Errors corrected in the Analysis engine since STAAD.Pro 2005, Build 1002.US.REL

1. The member end forces calculated for members subjected to loading from the OPEN structure type wind load generation were wrong.
2. If a primary load case contains the CALCULATE RAYLEIGH FREQUENCY command, and there are REPEAT LOAD cases which refer to that primary case, the Rayleigh Frequency was not calculated for the REPEAT cases.
3. In the situation described in (2), if any load items are present after the CALC RAYLEIGH FREQ command, they failed to get REPEATed in those REPEAT cases. Consequently, the analysis results for such REPEAT cases were wrong.
4. For models with ENFORCED or ENFORCED BUT supports, the following terms may have been reported incorrectly in some situations.

   TOTAL APPLIED LOAD terms reported in response to the PRINT STATICS CHECK command
   TOTAL REACTION LOAD terms reported in response to the PRINT STATICS CHECK command
   SUPPORT REACTION values reported in response to the PRINT SUPPORT REACTIONS command

   However, other analysis results like JOINT DISPLACEMENTS or MEMBER FORCES were not affected by this error.
5. In the Japanese section database, there was an error in the value of IY for the 350X350X12 tube section. The IY was stored as 2980 cm^4. The correct value is 29800 cm^4.

Errors corrected in Design engine since STAAD.Pro 2005, Build 1002.US.REL

1. An error was present in the calculation of the component stresses during welding design.
2. For members which have been declared as tension-only, during design per the LRFD code, in some situations, the code checks performed may be those meant for a compressive type axial force. An example of such a situation is when the force at the start of the member is compressive while the force at the middle and end is tensile. An inclined member subjected to selfweight loading is an example for that.
3. An error was present in deflection check calculation during steel design per various codes.

Errors corrected in Post-processing since STAAD.Pro 2005, Build 1002.US.REL

1. In the Tools-Query-Member facility, there was an error in the plotting of deflection and moment/shear diagrams for members which receive contribution from ONEWAY LOAD. However, the diagrams plotted in the Beam-Forces page and Node-Displacement page were not affected by this error.
2. For plate elements, the TRESCA stresses reported in the tables of the Plate page did not match the values reported in the output (.ANL) file.
3. There was an error in printing the Beam-Forces-Envelope tables. The printed pages would show zeros or a different set of values than what appears on the screen.
4. Loads generated through the NRC load generation command (the seismic load generator for the Canadian code) were not displayed.
5. In the Tools-Query-Member facility, there was an error in the plotting of deflection and moment/shear diagrams for members which receive contribution from the OPEN structure type wind load generation.
6. In plate stress contour plotting, the "Index based on Center Stress" switch did not work correctly in the "Off" position.

What's New in STAAD.Pro 2005, Build 1002.US.REL?

New Features

STAAD.Pro is now integrated with ADAPT's Floor Pro software. ADAPT Floor Pro is a software for analysis and design of concrete and post-tensioned floor systems. Additional information regarding this program is available at www.adaptsoft.com. Details of the integration may be found in the supplementary documentation that describes this feature. Interested persons may contact REI sales at 1-800-367-7373.

Errors corrected in Pre-processing since STAAD.Pro 2005, Build 1001.US.REL

1. From the graphical screen, it was not possible to modify the number of divisions along the sides of rectangular openings in surface elements.
2. The multiple structure check in the Tools menu caused the program to hang if surface elements are present in the model.
3. If the Translational Repeat or Circular Repeat operations were performed more than once in the same session, those features did not work correctly the second time onwards.
4. The REPEAT LOAD dialog box failed to list some of the primary load cases if there were gaps in load case numbers.
5. The "View Highlighted Only" option of "Tools - Cut Section - Select to View" did not work.
6. For members which are assigned User Table ISECTIONs, the "View - Structure Diagrams - Full Sections" facility did not work.
7. If a STAAD file containing the command CODE TIMBER was opened, the program crashed.

Errors corrected in the Analysis engine since STAAD.Pro 2005, Build 1001.US.REL

1. For a model that contains PRESTRESS or POSTSTRESS loads, and re-analysis commands, the program stopped running with the following message while executing the second analysis instruction

   **ERROR: ONLY ONE PRESTRESS OR POSTSTRESS LOAD IS ALLOWED PER MEMBER PER LOAD CASE.
   MEMBER nnn LOAD CASE mmm VIOLATES THIS.

   The error could also be triggered by REPEAT LOAD cases whose consituent load cases contain PRESTRESS or POSTSTRESS load
2. For structures declared as STAAD PLANE and having the SET Z UP command, the following message would appear

   WARNING : IT IS ADVISABLE TO ANALYZE THIS STRUCTURE USING THE COMMAND STAAD SPACE INSTEAD OF STAAD PLANE.

   for loads applied along the global Z direction even though they are in the plane of the structure.
3. For single angles specified from the US Aluminum table, the IZ and IY values (Moments of Inertia about Z and Y axes) were swapped. The section modulus values SZ and SY were also swapped. Consequently, the analysis and design results were wrong if the members were specified as being able to carry shear and bending.
4. In a model containing the "SET Z UP" command and MEMBER PRESTRESS or MEMBER POSTSTRESS loading, if a re-analysis is done, as in the following example,

   PERFORM ANALYSIS
   SELECT ALL
   PERFORM ANALYSIS

   the program stops running with the following error message :

   **ERROR: ONLY ONE PRESTRESS OR POSTSTRESS LOAD IS ALLOWED PER MEMBER PER LOAD CASE.

5. For members which have been assigned American HSS Rectangular shapes (HSST), if member selection is performed per the LRFD code, member selection may fail. The critical condition will be shown as "KL/R OVR LIM" and the utilization ratio of 0.000 will be reported.

Errors corrected in Post-processing since STAAD.Pro 2005, Build 1001.US.REL

1. In models containing the command SET Z UP, the stresses at corners of various sections were reported incorrectly in the Beam - Stresses page.
2. For tapered members, the section displacement values and diagram in Member Query were wrong.

What's New in STAAD.Pro 2005, Build 1001.US.REL?

New features and major enhancements

Please refer to the Software Release Report for STAAD.Pro 2005 for this information.

Errors corrected in Pre-processing since STAAD.Pro 2004, Build 1004.US.REL

1. If a FLOOR GROUP name is used in lieu of a member list for specifying FLOOR WEIGHTs, as in the example below,

   DEFINE UBC LOAD
   ZONE 0.38 I 1.0 STYP 2 RWX 5.6 RWZ 5.6 NA 1.3 NV 1.6 CT 0.032
   SELFWEIGHT
   FLOOR WEIGHT
   _LOWER_FLOOR FLOAD 0.4
   _UPPER_FLOOR FLOAD 0.3

   the GUI does not recognize that command. Upon opening that file, it will consider that line to have an error. This error affects the GUI only. It does not have any effect on the analysis.
2. If one attempts to switch on the load display of the following load type :

   LOAD 1
   ELEMENT LOAD JOINTS
   1 5 6 FACETS 1 PRESSURE GY -2500 -2200 -2500

   the program crashes. The problem appears to exists only for triangular elements, not quadrilateral elements.
3. The GUI does not recognizing a member-list or GROUP name specified with the following WIND LOAD command.

   WIND LOAD (f) TYPE j LIST memb-list

   Consequently, on a model in which the wind load is applied to a specific portion of the structure, the GUI will report that line as having an error.
4. The option under the View menu called "View Selected Objects Only" did not work correctly. It had to be selected twice to be enabled.

Errors corrected in the Analysis engine since STAAD.Pro 2004, Build 1004.US.REL

1. Open structure wind loading produces wrong values on near-vertical members
2. If a model contains plates, and, response spectrum loads with ABS combination type for modes, program crashes.
3. For moving load generation, if the vehicle data is specified in an external file, and data exceeds 79 columns, the loads generated will be erroneous.
4. For OR and ORR shapes from the Mexican Steel Table, such as,

   OR51X4.8
   and
   ORR152X51X7.9

   the Area of cross section (AX) was overestimated by a factor 6.4516. So, if the correct value is say, 8.19 sq.cm, STAAD was using 52.86 sq.cm. This error dates back to the intial builds of STAAD.Pro 2002.
5. There were some errors in the calculation of section properties for trapezoidal sections. If ZD is greater than ZB, IY and SY were wrong. If ZB is greater than ZD, IY, SY and SZ were wrong.

Enhancements/changes in the Design engine since STAAD.Pro 2004, Build 1004.US.REL

1. A refinement in bar arrangement calculations has been done for design per the ACI 318 design. Specifically, it has to do with satisfying the maximum bar spacing requirement per Clause 10.6.4 on page 119 of ACI 318-02.

Errors corrected in Steel, Concrete, Timber and Aluminum Design engine since STAAD.Pro 2004, Build 1004.US.REL

1. The following errors were present in steel design per AASHTO 1996.
   1. KL/r checks did not use proper sign of axial force. In other words, tensile axial force was checked against slenderness limit in compression, and compressive axial force was checked against slenderness limit in tension.
   2. Some values like Cb were coming out to be invalid numbers
   3. Prismatic sections were being code checked, without any proper values for flange width, flange thickness, etc.
2. On platforms such as Windows 2000, the results of tapered beam design per ACI may not be right. An example of this is when the design fails at any particular location because of indequate section dimensions. At all subsequent points of design also, the design may fail, even though, at those sections, the cross section size is large enough to accomodate the moment.
3. The following errors were present in Timber Design per AITC 1994
   1. Default value of KBE is documented erroneously in the manual as 1.0. It should be documented as 0.609
   2. Critical MZ reported in the output, is reported in ft-kips units, not the current unit system
4. The default values of the FYLD and FU parameters were incorrectly set for the AISI code as 50.76 and 65.27 ksi until now. Per the manual, they ought to be 36 and 58 respectively.
5. In design per the Aluminum code, if commands are in the following sequence :

   MEMBER PROPERTIES ALUMINUM
   ...
   ..
   
   LOAD ..
   ..
   
   PERFORM ANALYSIS
   
   PARAMETER
   CODE ALUMINUM
   ..
   SELECT ..
   
   PERFORM ANALYSIS
   
   PARAMETER
   CODE ALUMINUM
   ..
   CHECK CODE ..
   
   or, in summary,
   
   SELECT
   RE-ANALYSE
   CHECK CODE

   the properties which will show up in the output for the CHECK CODE command will be those specified originally by the user under the MEMBER PROPERTIES command, not those that were picked during the SELECT MEMBER operation.
6. For design per the Canadian S16-01 code, the clauses 13.8.1 and 13.8.3 were erroneously interchanged during the reporting of the critical condition.
7. For weld design, if the required weld size exceeded the maximum allowable weld size, that condition was not being reported unambiguously.

Errors corrected in Post-processing since STAAD.Pro 2004, Build 1004.US.REL

1. Assign a section from the Aluminum table. Double click on the member and select the property tab. The property values displayed are wrong. As a result of this, the stress values reported in the Beam stresses page will also be wrong.