Moment release modelling

Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

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GeoCham
Posts: 21
Joined: Mon Oct 02, 2017 2:33 am
Location: Self-Employed

Moment release modelling

Post by GeoCham » Sat Jul 07, 2018 12:27 am

Hi all,
How does one model moment release for truss members in OpenSees?
thx
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selimgunay
Posts: 913
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Moment release modelling

Post by selimgunay » Sat Jul 14, 2018 6:26 pm

There is a truss element that you can directly use.

http://opensees.berkeley.edu/wiki/index ... ss_Element
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GeoCham
Posts: 21
Joined: Mon Oct 02, 2017 2:33 am
Location: Self-Employed

Re: Moment release modelling

Post by GeoCham » Fri Jul 20, 2018 11:02 pm

the truss members intercept frame members, I tried using equalDOF but still modal analysis gives me wrong numbers
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selimgunay
Posts: 913
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Moment release modelling

Post by selimgunay » Tue Jul 24, 2018 10:58 pm

You should not use equaldof for the rotations to introduce moment releases.
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