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Hello everyone, In a 3D model, I assign rigid diaphragm to the stories using rigidDiaphragm command. When I use elastic beam and column elements and run analysis, I get 0 axial force on beams as expected. But when I use nonlinear beam and column elements using nonlinearBeamColumn command with fiber ...

Does anyone have the reference document for Concrete02 material "Mohd Hisham Mohd Yassin, "Nonlinear Analysis of Prestressed Concrete Structures under Monotonic and Cycling Loads", PhD dissertation, University of California, Berkeley, 1994." Can I define input values (uniaxialMat...