The large deformation capacity of a traditional lead shear damper is insufficient, and undesirable phenomena such as low damping efficiency and poor stability may occur.Based on the design scheme of the normal lead shear damper with long stroke (LSD-LS), the construction and design method of an improved plate lead shear damper with long stroke (ILSD-LS) was proposed.Based on the ideal rigid-plastic constitutive law of lead, a mechanical model of the ILSD-LS was established.Compared to LSD-LS, ILSD-LS has better damping force, energy dissipation capacity and stability according to the results of simulation and experiments, and the method of calculating damping force is more reasonable and accurate.The nonlinear time history analysis of a typical high-rise structure with ILSD-LS was carried out by considering the characteristics of ordinary ground motion and long period ground motion.Numerical results indicate that seismic response of a high-rise structure with ILSD-LS is significantly reduced even when subjected to long period ground motion.
王宝顺，闫维明，何浩祥. 改进型大行程板式铅剪切阻尼器力学模型及减震控制研究[J]. 振动与冲击, 2018, 37(16): 177-184.
WANG Baoshun,YAN Weiming,HE Haoxiang. Mechanical model and damping control of improved lead shear dampers with long stroke. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(16): 177-184.
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