大跨隔震结构基于结构随机因子法的响应分析

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (10) : 154-158.

论文

王曙光，杜东升，李威威，缪卓君

作者信息 +

Response Analysis of Large-span Isolated Structures Based on Random Factor Method

WANG Shuguang, DU Dongsheng, LI Weiwei, MIAO Zhuojun

Author information +

文章历史 +

摘要

结合等价线性化方法，将随机因子法拓展应用到非线性多自由度结构中。选取隔震支座的屈服位移、面积、面压和高度等四个参数为随机变量来考虑隔震层刚度和结构质量的随机性，采用结构随机因子法建立大跨隔震结构的四个随机变量与结构刚度和质量之间的关系，应用代数综合法推导了结构位移响应的数字特征计算表达式。最后通过算例研究了多维地震下大跨隔震结构中结构随机性对位移响应的影响，并获得了一些有意义的结论。

Abstract

Combined with equivalent linearization method, the random factor method was applied to multi-degree-of-freedom nonlinear structure. The yield displacement, area, pressure and height of isolation bearing were chosen to consider the randomness of structural mass. The relationship between four basic random variables and structural stiffness and mass was established by improved method. The computational expressions of the structural displacement response were deduced by using the algebra synthetic method. Then author analyzed a long-span isolated structure based on improved method and obtained some beneficial conclusions.

导出引用

王曙光，杜东升，李威威，缪卓君. 大跨隔震结构基于结构随机因子法的响应分析[J]. 振动与冲击, 2017, 36(10): 154-158

WANG Shuguang, DU Dongsheng, LI Weiwei, MIAO Zhuojun. Response Analysis of Large-span Isolated Structures Based on Random Factor Method[J]. Journal of Vibration and Shock, 2017, 36(10): 154-158

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