Current Revision posted to RAM | STAAD Wiki by Steve Crabtree on 6/15/2016 1:36:04 PM
| Applies To | |||
| Product(s): | STAAD.Pro | ||
| Version(s): | All | ||
| Environment: | N/A | ||
| Area: | Design | ||
| Subarea: | American Steel Design | ||
| Original Author: | Bentley Technical Support Group | ||
STAAD is checking deflection for beams or girders for all the load combinations in my model. Is there a way to tell STAAD which load combination to check?
You have to use the LOAD LIST command to achieve this. Supposing you want to check deflection for combination cases 81 and 82. And assume that L/Deflection has a limit of 240. The command sequence required to achieve this is
LOAD LIST 81 82
PARAMETER
CODE AISC
DFF 240 ALL
CHECK CODE ALL
However, after these commands, you have to reset DFF to a very small number so that deflection does not become a criteria for any further design operations. That is because, once a parameter is specified in STAAD, it stays that way till it is changed again. So, after the above, you need to specify
PARAMETER
CODE AISC
DFF 1 ALL
Tags: LRFD, AISC ASD, Load Combination, AISC 360, deflection