instability steel desig module

[eusmor]

Hello,

Could you help me please?

I can’t understand why the elements 17 and 18 in the attachment have instability in the steel design module

Thanks

David

[Artur.Kosakowski]

Because they are under  tension and exceeded the entered slenderness limit which in such case is calculated as for the entire length of the bar. I would suggest the changes as shown on the attached picture. Mind that this would also allow you to set the correct deflection limits.

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[eusmor]

Then lateral buckling parameters doesn't work for tension members, only for compression members?

 please see atacment.

Thanks,

David

[Artur.Kosakowski · Accepted solution]

Yes, this is correct however I'd say that the perpendicular beam(s)  is/are actually buckling restrains too and then they will be considered.

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