【摘要】 简要介绍隔震结构的减震机理,为研究高层隔震结构的减震性能,以一栋带裙房的11层框架结构为例,采用有限元软件SAP2000建模,对无控结构模型,层间隔震模型和基础隔震模型进行罕遇地震作用下非线性时程分析。通过层间位移、层间剪力、顶层加速度反应对比,得出一些有用结论:隔震支座能有效减少地震能量向上部结构传递,基础隔震效果优于层间隔震。更多还原

【Abstract】 The isolation mechanism of isolation structure was introduced briefly. To investigate the isolation performance of high-rise isolation structure,based on a eleven layers of framework with podium structure,a structural analysis software SAP2000 was used to establish models that were no control structure,story isolation structure and base isolation structure models. Non-linear time-history analysis of three models were done under the severe earthquake. Via the comparison of interlaminar displacement,interlaminar shear and overstory acceleration,some useful conclusions were drawn. Isolation bearing can reduce the seismic energy pass to structure above it,the damping effect of base isolation is better than story isolation.更多还原