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Staad Built up beam buckling analysis

Staad Built up beam buckling analysis

Staad Built up beam buckling analysis

(OP)
I have a built up plate girder that I'm trying to model in staad to check for stability during erection.  The beam has several different sections that are modeled and I'm trying to make sure staad is not modeling it pinned, or supported laterally, at those nodes.  How do I do that?

Also, the buckling analysis says the loads are in the opposite direction to the loads that will cause buckling.  What does that mean?

I'm sure I'm just doing something goofy, but staad people wont get back to me.

Thanks for the help.  Staad help desk is not answering me at all.

RE: Staad Built up beam buckling analysis

Not sure I understand you, but if you just have a node where the Girder section changes, there is no support there. You'd have to intentionally assign a support to the node.

As for the buckling thing, maybe your applied loads cause tension in the member???

RE: Staad Built up beam buckling analysis

FYI: There is another "Bentley: STAAD products" forum which might be a better place to post this type of message.

Not sure if the STAAD / Bently support guys are going to be able to help you.  If so, they are much more likely to monitor that list than one which is geared toward more generalized Structural topics.  

 

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