近断层脉冲型地震作用下粘滞阻尼器组合基础隔震结构的动力分析

In this paper, near-fault pulse-like ground motions are simulated by combining actual El-Centro ground motions with equivalent pulse campaign. Inputting synthetic near-fault pulse-like ground motions, the seismic dynamic responses of structures with no isolation, base isolation, base isolation with viscous damper are contrasted and analyzed. The study shows that the story drift of base isolation structures concentrated in the isolation and the displacement is large. The dynamic response of superstructure on the base isolation structure is smaller than it on base fixed structure. The effectiveness of passive coercion is best and acceleration, layer shear, layer displacement is smallest when viscous dampers are used.