Restraining Support

[satis]

Hi,

I am trying to model a 10 story 3D (2 bay by 3 bay) shear wall building with fiber sections. To model the shear wall I used nonlinear beam column element. Rigid link with beam type was used to connect the nodes of the wall at the floor levels. Rigid diaphragm action is considered. But using this method the period of the building is very less (0.15 sec). I expect to get a period of about 1.2 sec. What could be the possible reason for this?

[fmk]

your period of .15 is very low .. 1.2 looks a bit high ..

your sections or material definition is not correct .. compute for an elastic wall and make the model elastic .. first use elastic sections and check the period and then elastic materials and check period again .. the results should tell you were the error is.

[satis]

Thank you for your comment.
I used elastic sections and made some corrections which resulted in a period of 0.78 sec, which looks more reasonable.