p-delta effect

pyb · Post by **pyb** » Mon Oct 22, 2007 5:35 am

I am studying the opensees , and a freshman.I want to know how the p-delta effects are considered in the structral analysis.
Waiting for your reply.Thank you very much!

silvia · Post by **silvia** » Mon Oct 22, 2007 6:14 am

they are modeled using the geometric transformation command.

pyb · Post by **pyb** » Tue Oct 23, 2007 7:11 pm

silvia wrote:they are modeled using the geometric transformation command.

I am sorry ,I don't know the principle the geometric transformation is based on.Can you illustrate it detailly. Thank you very much!

Can you give me some important papers on which P-delta effects are based in opensees programe or illustrate it detailly?
Thank you very much

silvia · Post by **silvia** » Tue Oct 23, 2007 7:49 pm

please see the user manual:
http://opensees.berkeley.edu/OpenSees/m ... index.html

amin_asareh · Post by **amin_asareh** » Tue Nov 20, 2007 1:11 am

This method is given to the program by the transformation command. it is even better to use corrotational command for nonlinear analysis. this method is faster. for more information you can read some finite element books like Bathe or wilson.

pyb · Post by **pyb** » Wed May 21, 2008 2:54 am

Can you give me some important papers on which P-delta effects are based in opensees programe or illustrate it detailly?
Thank you very much

pejman_opensees · Post by **pejman_opensees** » Sat May 24, 2008 3:04 am

Hi
Look at some of my posts. You will find the references