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用凸集模型模拟隔震结构参数(如刚度、质量、支座的屈服力和屈服后刚度等)的不确定性,而用随机模型模拟地震动输入的不确定性,提出了计算近场地震作用下在考虑双不确定性因素时隔震结构基底发生碰撞的易损性曲线计算新方法;提出了鲁棒易损性曲线的新概念,计算结果将给隔震支座力学参数的设计以及基底与限位墙之间空隙宽度的选取提供参考;通过计算实例中基底最大位移敏感度分析发现,上部结构的质量和隔震支座的力学参数(如屈服力、屈服后刚度等)对基底最大位移影响较大,而上部结构的刚度对其影响不大;此外,该文的研究内容也为考虑结构参数和输入地震动双不确定性因素的情况下,计算各类结构地震易损性曲线提供了一种新的思路和途径。
By using the convex set model to simulate the uncertainty of the seismic isolation structure parameters (such as stiffness, mass, bearing yield strength and post-yield stiffness), and using the stochastic model to simulate the uncertainty of ground motion input, A new method of calculating the vulnerability curve of the basement of a shock-absorbing structure considering the double uncertainties is proposed. A new concept of the robust vulnerability curve is proposed. The calculation results will give the design of the mechanical parameters of the isolated bearing and Based on the calculation of the maximum displacement sensitivity of the basement, it is found that the quality of the superstructure and the mechanical parameters (such as yield strength, post-yield stiffness) of the basement But the stiffness of the superstructure has little effect on it. In addition, the research content of this paper also calculates the vulnerability of various types of structures under the condition of considering the structural parameters and the dual uncertainties of input seismic motion Curves provide a new way of thinking and ways.