separation (uplifting) mode

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khatibi_m
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Joined: Mon Jun 01, 2009 12:57 am
Location: Kerman

separation (uplifting) mode

Post by khatibi_m »

Hi every body

I am studying nonlinear dynamic analysis of RC frame including soil-structure interaction(2D).
I would consider separation (uplifting) mode between soil and foundation.
How can i model this mode? which element is proper?

Thanks.
fmk
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Post by fmk »

zroLength element with a gap material should be fine .. watch out for pounding if uplift does occur as your accelerations may go through the roof and you will need to damp them out quickly.
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