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Re: EQ forces- Retaining Wall

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Sid, a non building structure is well defined in UBC-97 and retaining walls designed to resist seismic forces are usually designed to resist pseudo  lateral  seismic forces given by Monokabe-Okabe equations. Unless I am not clear of your question, I think this should be helpful to you. Look at it this way, a building kind of structure is a very highly investigated kind and seismic design parameters like R is well established for this kind of structures. In addition depending on a zone, such structures may be detailed to be ductile enough mainly for reasons of safety required for residents. Approach to retaining walls is a bit different definitely. Hope this helps

  "Lakhani, Sid" <slakhani(--nospam--at)> wrote:
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