The OpenSees Community

Thank you very much for a quick reply in all my posts. I'm writing a masters thesis and have just begun to use OpenSees. This forum has been extremely helpful.

Hi, I'm trying to capture the formation of plastic hinges in my structure. All members are reinforced concrete. I am using forceBeamColumn elements. I first tried to capture one beam (tag number 74) which I know will yield first (computed in another program). I have performed a displacment-controlle...

I have performed a pushover analysis and I am trying to record 4 node displacements. I am using displacement control. However, no matter how long the target displacement is, the recorder always stops some steps before. E.g., If I set the target displacement to 0.25 m the it will only record upp till...

I have modelled a 4 storey frame structure in 2D with shear walls in the different softwares, including OpenSees. In two of the programs, I have used Force-Based Beam-Column Elements. Both in OpenSees and in the other software I get a stiffer system using Force-Based Beam-Column Elements than do usi...

I am working with a RC frame structure with shear walls which I have modeled with Force-Based Beam-Column Elements. I have performed an eigenvalue in analysis in another program but here I have used shell elements for modeling walls. The model in the other program is much softer. Also, the first nat...