Assign Moment-Curvature curve to plastic Hinge?

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JeferssonReyes
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Joined: Tue May 30, 2023 8:27 pm

Assign Moment-Curvature curve to plastic Hinge?

Post by JeferssonReyes » Tue May 30, 2023 8:39 pm

Good morning, In OpenSees it is possible to implement the "Plastic Hinge" concentrated plasticity model, and when doing the nonlinear analysis, the user enters the idealized moment-curvature (according to CalTrans)?

Image

The moment-curvature is idealized by CALTRANS:

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STKO Team
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Joined: Tue Oct 29, 2019 8:45 am

Re: Assign Moment-Curvature curve to plastic Hinge?

Post by STKO Team » Fri Jun 09, 2023 8:11 am

Check beginners webinars here:
https://asdea.eu/software/get-started-webinars/

We have 2 types of lumped plasticity:
web lumped.png
web lumped.png (68.98 KiB) Viewed 5643 times

Lumped in a finite length using moment-curvature (curvature will be integrated by the FEM code in the finite length of the plastic hinge)

Lumped in a zero Length using moment-rotation (you have to input the rotation as a curvature integrated over the plastic hinge length, because now you don't have this physical length in your model)

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