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根据串联隔震建筑结构体系的地震可靠度特征,推导了串联隔震结构体系的地震可靠度计算公式,并根据隔震结构的上部结构、隔震层、下部结构的概率地震需求模型,提出了串联隔震结构的地震易损性计算方法。最后,以某典型高层框架-核心筒基础隔震结构为算例,建立了高层隔震结构的有限元模型并进行地震动响应分析,利用已提出的方法对该隔震结构的地震破坏概率进行分析,获得了高层隔震结构整体处于严重破坏状态时的地震易损性曲线,结果表明隔震层的破坏是影响高层隔震结构体系整体地震可靠度的关键因素。
According to the seismic reliability characteristics of the series isolated structure system, the formula for calculating the seismic reliability of the series isolated structure system is deduced. Based on the model of the probabilistic seismic demand of the superstructure, isolation layer and substructure of the isolated structure, Seismic Vulnerability Calculation Method of Series Base Isolation Structure. Finally, taking a typical high-rise frame-core tube base isolation structure as an example, the finite element model of high-rise isolation structure is established and the seismic response analysis is carried out. The probability of seismic failure of the isolated structure is calculated by the proposed method The results show that the failure of the isolation layer is the key factor that affects the overall seismic reliability of the isolated high-rise seismic isolation system.