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STAAD.Pro General [FAQ]

  Product(s): STAAD.Pro
  Version(s): All
  Environment: N/A
  Area: General
  1. How does Staad "direct" a spring to determine if it is in compression or tension?
  2. What is the difference between a LOAD COMBINATION and a REPEAT LOAD?
  3. In a structure which has wall panels in addition to other things, is it possible to temporarily disable some of the outer panels and analyse just the rest of the structure consisting of interior beams, columns, and slabs?
  4. What's the difference between ELASTIC MAT and PLATE MAT for spring support generation?
  5. The output from my STAAD run contains the warning message :THIS STRUCTURE IS DISJOINTED
  6. Warning message in output file: This structure is disjointed, accompanied by several instability warnings
  7. I am using STAAD.Pro 2002. When the STAAD Analysis and Design engine is running, you can't minimize the box that shows the activities in progress - it is always on top. I like to start the "run analysis" then go on to work on something else while it is running. It is not very convenient having the box on top of everything. How can i fix that?
  8. My STAAD output file contains the warning message : **WARNING** THE POISSON'S RATIO HAS NOT BEEN SPECIFIED FOR ONE OR MORE MEMBERS
  9. Read/write Error in Unit No. 17
  10. I need to analyze a frame whose members have been rotated about the local z axis. Is there anyway to model this situation using STAAD? Can you input a point and define the orientation of the local axis of that point? Or is there some other way to model this situation?
  11. Is IX the St. Venant's Torsional Constant or is it the Polar Moment of Inertia?
  12. How does one get a report indicating whether the applied loads are in equilibrium with the support reactions?
  13. How can I check whether the story drift of the floors are within allowable limits?
  14. I have a structure with supports marked as elastic foundation. I am getting an error message "Error 0550" when I run the analysis. What could be the cause of this?
  15. I want to use the Master/slave command to model a rigid diaphragm in STAAD.Pro 2001. The problem is two columns separated by 40 ft. One column goes from joints 1 to 2 and the second column goes from joints 3 to 4. I wish to have a rigid link between joint 2 and joint 4. The program gives an error of multiple structures. What additional connections do I have to do to tie these joints together?
  16. I am going to incorporate into my model, rock anchors which will be installed down the center of the pipe piles. In case you are not familiar with these, they are a thread rod attached to the top of the pile, go down the center and are anchored into the rock and are used to take the uplift forces in the pier. I was planning on using the post tensioning command. Is this correct?
  17. When I try to analyse a model which contains the ELASTIC MAT command for generation of soil spring supports, I encounter an error message : Error 0550* support joints are collinear
  18. Do you have any thumb rule/ formula for estimating the time required for solving a structure involving plates elements?
  19. I have to analyse a structure for temperature load. The temperature difference is 600 deg C. (from 0 deg C to 600 deg C). Which value of alpha I shall use, (i.e. alpha for 0 deg or alpha for 600 deg) for the analysis? Can I use an alpha value for the mean temperature?
  20. Can I carryout a machine foundation analysis using STAAD PRO (Embedded Block foundation and Pile foundation)?
  21. UNEXPECTED COMMAND IN LOAD DATA CHECK SPELLING AND ORDER OF DATA IN CASE NO. 1
  22. What is the procedure used by STAAD.Pro in computing the stiffness matrix of a tapered beam?
  23. While using the "Master Slave" command to define a rigid diaphragm in a framed multi-storeyed structure, what criteria should one adopt to determine the "Master node"?
  24. I am analyzing a simply supported beam, which is 20 feet long. There is a concentrated force acting at the mid-span point of the beam. In one case, I model it as a single member and apply the load at midspan using the member load option. In another case, I model it as 2 separate members, each 10 ft long, and apply the load at the central node using the JOINT LOAD option. The member cross section is a W12X26 from the American steel table. When I look at the deflection at the 10 ft point, using the PRINT SECTION DISPLACEMENT command for case (a) and the PRINT JOINT DISPLACEMENT command for case (b), the values do not match. Why?
  25. Can I design a stringer using STAAD.Pro?
  26. In the member end forces output, why are two values being reported for axial forces? Also, why is it that sometimes the numerical values of these two are the same and sometimes they are not?
  27. When I try running the analysis on STAAD.pro 2001, I get the error message error message as "Fatal Error: Cannot start analysis Engine". However, when tried with another machine with Win 95/98. The same software is working fine without giving any error.
  28. I have a continuous beam, and all members have the same E and same properties. I run it once with one set of member properties. I double the depth of the members and run it a second time. The results of the second run (midspan moment, reactions, etc.) do not match those from the first run. Shouldn't the results stay the same as the EI remains constant for both the beams?
  29. During the analysis of a large model, the analysis engine stops with the error message Read/write ERROR in Unit No. 17
  30. I want to ignore the stiffness of certain members during analysis but want the loads applied on them to be transferred to the structure. Can I use the INACTIVE MEMBER command for this ?
  31. How to add/change/modify sections to the Section Database?
  32. ERROR-STAAD BUILT IN MEMORY BLOCK HAS OVERFLOWED
  33. When I save my file in STAAD.Pro, all REPEAT commands are changed by STAAD to the expanded format. The same thing happens when I do a File > Save As. I would like to retain my input using the REPEAT commands. Is there any way to do that ?
  34. What is a Reference Load Case?
  35. Can we specify time-history loads in a Reference Load Case?
  36. Some of the STAAD.Pro icons are missing from the toolbar region. How can I get those back ?
  37. In the output file, I see the following Note. **NOTE- Tension/Compression converged after  5 iterations, Case= 3 . What does it mean?
  38. After installing Staad .Pro, the following error comes  : " The application has failed to start because xmllite.dll not found. Re-installing the application may fix this problem. “
  39. Analyze multiple STAAD.Pro models in a batch processing
  40. Perform clean installation of STAAD.Pro Connect Edition
  41. Exceptions.UnexpectedException error message

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