Bouc-Wen Model

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Gholamreza
Posts: 84
Joined: Tue Nov 07, 2017 7:47 am
Location: University of Central Florida

Bouc-Wen Model

Post by Gholamreza »

Hello Engineers,

Can anyone explain how OpenSees calculate the yielding displacement (uy), yielding force (Fy), and also strength (Q) of structure when we use Bouc-Wen material? let say we have a SDOF structure with BW material with the known initial stiffness (ko) how to find the yielding point? Obviously, if we know one of them we can find the rest..... but I am not sure how OpenSees compute them.
selimgunay
Posts: 916
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Bouc-Wen Model

Post by selimgunay »

There is no defined yield point for the Bouc-Wen material as the nonlinear relation starts from the beginning. If you need to define a yield point, you can do it with your own processing using the force-displacement relation that you record as a result of your analysis
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