Numerical investigation on hysteretic behaviors of low-yield point SPSW frames

초록

Steel plate shear walls (SPSWs) are recognized as an economical and efficient lateral force-resisting system for countering seismic and wind loads. In this study, cyclic load tests were performed on SPSW frames using Low-yield point steel (HSA80) to verify their performance in terms of lateral force resistance and ductility. The objective was to evaluate the hysteretic behavior of SPSW frames equipped with HSA80 steel plates under cyclic loading. The target specimens consisted of three-story frames with a single span, resulting in a total of five specimens. These specimens included three steel plate shear wall frames, one center opening frame, one moment frame. The test results validated the hysteretic characteristics, maximum strength, skeleton curves, and energy dissipation capacity of the SPSW frames. Additionally, a finite element model was developed to verify the experimental results. The model incorporated material and geometric nonlinearities, large deformations, and initial geometric imperfections. By comparing the analytical predictions with the experimental data, the validity of the model was confirmed in terms of maximum strength and failure modes. © 2026 Elsevier Ltd.

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