Adopting algorithm of random event 'conditional probability and introducing condition association coefficient of failure mode can reflect failure dependence of structure.
采用随机事件的条件概率的运算法则，引入失效模式间的条件关联系数来反映结构之间的失效相关性。
Subset simulation is a general method for structural dynamic reliability computation, and it is especially efficient for small failure probability computation of nonlinear structure.
子集模拟法在计算结构动力可靠度时适用范围较广，针对非线性结构小失效概率的计算效率较高。
And in the same time, the paper also studies the automatic calculating method for the main failure model of the structure system and the method of failure probability of the calculating system.
同时研究了求取结构系统主要失效模式的自动算法及计算系统失效概率的方法。
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