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Experiment Investigation and Numerical Analysis on the Low-Yield-Point Steel Shear Panel Dampers
Pseudo-static test of two groups of mild steel shear panel dampers (MSSPD) made of LYP160 steel were carried out for study of the mechanical properties, low cycle fatigue behavior and earthquake mitigation effect. Four groups of the loading history were applied to trace the hardening of the shear panels. The influences of web plate size and width-thickness ratio and the cyclical load amplitude were analyzed. The entity model was built by ANSYS with both geometric and material nonlinear analysis included in modeling. The combined hardening material model of Chaboche kinematic hardening rule and Voce isotropic hardening rule was adopted to simulate the cyclic hardening of LYP160 steel. The result shows that MSSPD has the features of large initial stiffness, high ultimate bearing capacity, favorable ductility and excellent energy dissipation capacity. The mechanic parameters are influenced by the sizes of the shear panel and the amplitude of the load history. Simulated hysteresis loops predicted by combined hardening model agree well with test results, especially reflecting the cyclic hardening character of low-yield-point steel.
Experiment Investigation and Numerical Analysis on the Low-Yield-Point Steel Shear Panel Dampers
Pseudo-static test of two groups of mild steel shear panel dampers (MSSPD) made of LYP160 steel were carried out for study of the mechanical properties, low cycle fatigue behavior and earthquake mitigation effect. Four groups of the loading history were applied to trace the hardening of the shear panels. The influences of web plate size and width-thickness ratio and the cyclical load amplitude were analyzed. The entity model was built by ANSYS with both geometric and material nonlinear analysis included in modeling. The combined hardening material model of Chaboche kinematic hardening rule and Voce isotropic hardening rule was adopted to simulate the cyclic hardening of LYP160 steel. The result shows that MSSPD has the features of large initial stiffness, high ultimate bearing capacity, favorable ductility and excellent energy dissipation capacity. The mechanic parameters are influenced by the sizes of the shear panel and the amplitude of the load history. Simulated hysteresis loops predicted by combined hardening model agree well with test results, especially reflecting the cyclic hardening character of low-yield-point steel.
Experiment Investigation and Numerical Analysis on the Low-Yield-Point Steel Shear Panel Dampers
Xu, Li-Yan (author) / Nie, Jian-Guo (author) / Fan, Jian-Sheng (author)
2014 International Conference on Computing in Civil and Building Engineering ; 2014 ; Orlando, Florida, United States
2014-06-17
Conference paper
Electronic Resource
English
Experiment Investigation and Numerical Analysis on the Low-Yield-Point Steel Shear Panel Dampers
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