axial force and moment

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mohsenkh
Posts: 27
Joined: Wed Apr 21, 2010 7:40 am

axial force and moment

Post by mohsenkh »

Dear

I modeled RC resistant frame using forcebeamcolumn element.
Can this element consider interaction between axial force and moment in cross section? Or should I use sectionAggregator command for this aim?

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

Post by vesna »

Interaction between the axial force and moment depends on the way you define the section. Fiber section accounts for this interaction.

sectionAggregator aggregates groups of previously-defined UniaxialMaterial objects into a single section force-deformation model but there is no interaction between these objects. In simple words sectionAggregator can not account for axial force - bending moment interaction.
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