内容：
 针对层间隔震结构体系,考虑结构阻尼矩阵的非比例特性,建立小震下非比例阻尼层间隔震结构动力分析模型,采用零均值的Clough-Penzien双过滤功率谱模型,运用虚拟激励法对层间隔震结构进行随机响应分析,得到了结构各层的层间位移响应峰值统计量,建立极限状态下的功能状态方程,利用当量正态化法,通过串联模式,研究层间隔震结构的动力可靠度.最后以一栋12层的框架剪力墙结构为算例,根据建立的方法比较层间隔震结构与非隔震结构的层间位移响应和总体体系失效概率,分析隔震层刚度、隔震层阻尼以及场地类别在小震作用下对层间隔震结构体系失效概率的影响.结果表明,层间隔震结构的整体失效概率比非隔震结构明显降低,且随着隔震层刚度的增大而上升,随着隔震层阻尼的增加而下降,结构场地土越坚硬,可靠性越高. Aiming at the non-proportional characteristic of the structure of the segregated seismic structure, the dynamic analysis model of the non-proportional damping layer under the small earthquake is established. The zero-mean value of the Clough-Penzien double filter power spectrum model is established by using the virtual excitation method The results show that the inter-layer displacement response of the layers is obtained by the stochastic response analysis, and the functional state equation under the limit state is established. By means of the normalization method, the dynamic analysis of the seismic isolation Finally, a 12-story frame shear wall structure is taken as an example. The interlayer displacement response of the interlayer isolation structure and the non-isolated structure and the failure probability of the whole system are compared according to the established method. The results show that the overall failure probability of the inter-seismic isolation structure is significantly lower than that of the non-isolated structure, and with the increase of the stiffness of the seismic isolation layer, the failure probability of the seismic isolation structure is higher than that of the non-isolated structure Large and rising, with the isolation layer damping increased and decreased, the structure of the soil more hard soil, the higher the reliability.

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