forceBeamColumnCBDI

[mohsenkh]

Dear

I would consider Pdelta in your model. I found element forceBeamColumnCBDI in the opensees community. I have some questions:
1) Dose this element consider the Pdelta effects?
2) Dose this element consider the nonlinear behavior?
3) Can any one introduce me reference which explain this element or example?

Best Regards;

[Ameri]

mohsenkh,

I don't know why this element is not documented. Anyway, as far as I know (I hope Prof. Scott corrects me if I'm wrong!) -->

1) Yes, it considers both little and large P-Delta.
2) Of course it does! However, use this element just for 2D models.
3) You might find more information in Subversion Repositories, OpenSEES.

Good Luck

[mhscott]

Here is the formulation for linear-elastic material response:
http://dx.doi.org/10.1061/(ASCE)0733-9445(1998)124:6(704)

And here is one that talks a little about material nonlinear response:
http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0000757

See Remo D'Souza's Ph.D. thesis for full details