Composite Section Using Two Elements

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elescher
Posts: 1
Joined: Wed Apr 01, 2020 7:21 am

Composite Section Using Two Elements

Post by elescher » Mon Mar 01, 2021 2:00 pm

I am trying to develop a simple stick model for a bridge deck with a concrete slab and steel girders. Is it possible to define two different elements between two nodes? I want to define one element with the concrete section and one with the girder section properties. If this is possible, are there any commands that need to be defined in order for the elements to work as a composite section?

Ashok
Posts: 50
Joined: Tue Feb 19, 2019 8:59 pm
Location: IITM

Re: Composite Section Using Two Elements

Post by Ashok » Tue Mar 02, 2021 9:11 pm

Instead of going for two elements - I think it's better to go for two materials in a same beam element cross section. This is possible using fiber section.
https://opensees.berkeley.edu/wiki/inde ... on_Example
See this presentation for visualizing a composite fiber section (slide 24)- this doesn't give the code though. https://openseesforfire.github.io/Downl ... ebinar.pdf
I hope this helps.

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