Modelling Curved Bridge Boundary Conditions

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schaf218
Posts: 7
Joined: Wed Aug 03, 2011 12:03 pm
Location: University of Nevada, Reno

Modelling Curved Bridge Boundary Conditions

Post by schaf218 » Wed Jun 06, 2012 3:41 pm

Hey all,

I am working on modeling a full scale curved bridge in OpenSees. I am trying to model the abutment boundary condition as pinned radially (transverse) and free tangentially (longitudinal). However, as far as I can tell, OpenSees only allows the user to fix the boundary conditions in the global coordinate system (GCS) directions. Is there a way to define another GCS that is defined at some angle to the original GCS? Any other ideas on how to do this would be much appreciated.

Thanks for the help

vesna
Posts: 3033
Joined: Tue May 23, 2006 11:23 am
Location: UC Berkeley

Re: Modelling Curved Bridge Boundary Conditions

Post by vesna » Tue Jun 12, 2012 1:21 pm

You can define boundary conditions that attain an angle with the GCS using zeroLenght elements.

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