shear wall and pushover analysis 2

[johnclarion]

Hi Dear friends
I need to model shear wall for pushover analysis . Does anybody know how can I do it ?
in general, how can I do pushover analysis shear wall structure in or ETABS?

 

[drile007]

In a few words:

You must model a wall with Frame Sections and then define Frame Nonlinear Hinge Properties. Then you assign this Hinges prop. to prior define frame sections prop.. Next step is to define Static Nonlinear/Pushover Cases...

Drile007

 

[johnclarion]

Dear Drile
How can I define wall as frame section? may you please explain for me how?
for example if I define wall as column, should I define a column insted of wall with that dimension?
help me please

 

[drile007]

Yes, if the wall thicknes is 20cm and lenght 600cm then you define column 20/600cm. Otherwise you can't model the RC walls. Be careful with local axes...
I could send you a large model where I done pushover analysis on old masonry structure strengthened with reinforced concrete walls.


Drile007

 

[johnclarion]

Dear Drile,
As you know, I model shearwall as column, but when define it, I could not understand what should I do with length of beams which are connected to the walls. because in this case, the length of beams should prolong!!!
may you please help me about this?

Regards

 

[drile007]

You should model a beam with two sections:
1) Rigid body in the area where beam crossing the wall (inside the wall)->that's right, prolong the beam to the center of the wall.
2) Regular beam outside the wall area.

PS: Sorry for my English...

Drile007