shear computation in nonlinearBeamColumn Element

[nahid2011]

Hi Dear Sir/Madam

I applied "nonlinearBeamColumn Element" , as anticipated, the moment is limited to estimated Mp, which, can lead to a Vmax (shear) limitation too.

However in some cases whille V passess the Vmax, M is limited to Mp

I can not rationalize the case.

Would you please instruct me the method of computing V in "nonlinearBeamColumn Element"?

Or inform me how such a thing could be possible???

Kindest Regards

[vesna]

Can you post a simple example with only one element that demonstrates your problem?

[nahid2011]

unfortunately now it takes time to simplify my model, but I want to add some info:

In my model local axes of piers are not parallel to Global axes, and I do have torsion in my sections

Could these info give you a clue?

I guess in elements after computing the basic deformations, the basic forced would be computed?

How such a thing could be possible?

Thanks for your Care

[mhscott]

If you have a shear force-deformation relationship defined in your section model, e.g., using section Aggregator, you should see the nonlinearBeamColumn element limit its shear response accordingly. Otherwise, it's just computing shear by statics of the end moments.