I have an error in my analysis program that reads " Error - Above line contains Erroneous Data. Data-Check Mode is Entered." ?

Question

I have an error in my analysis program that reads " Error - Above line contains Erroneous Data. Data-Check Mode is Entered." What does this error mean, and how can it be resolved?

Sye · Answer

Generally speaking, it means that there is syntax error in the in command line preceding the error message. Errors like these can also be generated when commands are out of place. If you can upload your model (.std) file, we can take a look at it and let you know what exactly is causing the problem.

Sye · Answer

The group definitions were entered as part of the load case 8. So I moved it ahead of all the load commands. The material assignment was missing for one member. To simply things, I just added MATERIAL STEEL ALL as all your members were steel members. A modified file is uploaded here Warehouse 8_rev.std I didn't have much time to take a detailed look but you have a disjointed structure ( go to Tools > Check Duplicate Structure to find it ). Once you get that addressed you also need to check for any instabilities and check for high displacements.

Abhisek M · Answer

Re-run the file after deleting extra "STAAD SPACE" command at 6th line of editor file.

Sye · Answer

You may use the Section Wizard program to compose built up sections ( add Tee to other cross sections ) and then get those exported to STAAD.Pro as General Sections. You may then assign the section to the appropriate members. The process is explained in the wiki below 
 https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/29362/export-section-from-section-wizard-to-staad-pro

Sye · Answer

There were a number of oneway/floor load commands even before the first load case and these were causing the errors. I have commented those out. 
 *ONEWAY LOAD 
 *_2F31W ONE 4.9 GY 
 *FLOOR LOAD 
 *_2F1 FLOAD 4.9 GY 
 *_2F2 FLOAD 4.9 GY 
 *ONEWAY LOAD 
 *_2F31W ONE 4.9 GY 
 *FLOOR LOAD 
 *_2F1 FLOAD 4.9 GY 
 *_2F2 FLOAD 4.9 GY 
 *ONEWAY LOAD 
 *_2F31W ONE 4.9 GY 
 A modified file is attached for your reference 0385.Structure1.STD

Sye · Answer

You need to use the SET NL 70 command as I had suggested in my response to your question on a different thread. A modified file is attached for your reference 2011_rev.std 
 More details on SET NL command is available at 
 https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/39292/what-is-the-set-nl-command

Modestas · Answer

Commands in the input file should be changed from 
 MEMBER RELEASE 495 TO 518 START MPZ 99 495 TO 518 END MPZ 99 3 36 62 89 115 142 168 195 221 248 274 301 327 354 380 407 433 460 - 485 TO 494 END MP 95 
 to 
 MEMBER RELEASE 495 TO 518 START MPZ 0.99 495 TO 518 END MPZ 0.99 3 36 62 89 115 142 168 195 221 248 274 301 327 354 380 407 433 460 - 485 TO 494 END MP 0.95

Modestas · Answer

Change the first line in the input file from *PERFORM ANALYSIS into STAAD SPACE.

Sye · Answer

There are quite a few changes made to the model which is attached for your reference 8080.Structure truss model_rev.std 
 STAAD SPACE was missing from the beginning of the file 
 You had some tube sections specified for the members 495 to 502. Tubes do not exist in the latest AISC database anymore and so I replaced those with corresponding HSS sections 
 Some columns were missing as shown in the picture below 
 You should not declare the top and bottom chords of the trusses as TRUSS members. Instead only the members connecting the chords should be declared as TRUSS. 
 The model has very low lateral stiffness due to the fact that you have pinned supports at the base and also released the tops of columns and the start/ends of the bottom chord members. I took out the moment releases for the members 495 to 502 to somewhat stabilize the model as the displacements along Z were too high. You will need to add more members along global Z connecting the top chords of the trusses or add braces to increase the lateral stiffness along Z. The releases at the tops of columns also should be looked into and removed if possible.

Ahmad Martadinata · Answer

error above