Dear All,
I am facing problems to model the behavior of beam-column connections using pivot hysteresis link element. I have tried to model the link element near the joint, and I was using nonlinear direct integration analysis. However, when I plot displacement-force relationship in link element, the curve did not show up. What was wrong with my model? Could anyone give me some examples or tutorial for properly modeling techniques?
Kind Regards,
A. Tambusay
Firstly, I suggest you develop a static pushover analysis, or even better, a cyclic pushover analysis of your element in OpenSees or SAP2000 to reproduce a couple of experimental or analytical examples from the literature (e.g. Ling, et al., 2022; Pozo, et al., 2023). This will help you calibrate your model and give you confidence in your analyses. After this, you will be able to adequately extrapolate your model to other similar cases, and judge if your results make sense using either a hinge or link element. Finally, you can obtain the pivot model parameters in Ling, et al., 2022, or any other similar article. Find below some excellent references you can go through.
1) Article Quantification of variability in simulated seismic performan...
2) Article Parameter optimization for pivot hysteresis model for reinfo...
3) Article An Accurate Numerical Model Simulating Hysteretic Behavior o...
4) Article Cyclic Pushover Analysis procedure to estimate seismic deman...
Best,
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