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重力坝可靠度分析,文献[1]、[4]等已有论述,现已进入初步实用阶段。本文以重力分析法理论为基础,对重力坝可靠度计算结果加以分析,以说明大坝的安全度。结构可靠度分析方法主要分三部分: (1)列出极限状态方程。结构的极限状态以功能函数描述。当有n个随机变量影响结构的可靠度时,结构的功能函数Z=g(x_1,x_2,……,x_n),极限状态方程为g(x_1,x_2,……x_n)=0。 (2)通过极限状态方程,求出结构的可靠指标β_0以β作为统一的尺度来衡量结构的安全
Gravity dam reliability analysis, literature [1], [4], etc. have been discussed, has now entered a preliminary practical stage. Based on the theory of gravity analysis, this paper analyzes the calculation results of gravity dam reliability to illustrate the dam safety. Structural reliability analysis method is mainly divided into three parts: (1) lists the limit state equation. The limit state of the structure is described by the function. The structural function Z = g (x_1, x_2, ..., x_n) when there are n random variables affecting the reliability of the structure. The limit state equation is g (x_1, x_2, ... x_n) = 0. (2) Through the limit state equation, find the reliable index of the structure β_0 measure the structure safety with β as the uniform scale