复合形法在拱坝结构可靠度分析中的应用

Application of the complex method for reliability analysis of arch dams

根据Hasofer—Lind的定义,将复杂的拱坝可靠性指标计算问题转化为数学上的优化问题,并用复合形法求解,从而避免了复杂非线性功能函数的求导问题。将此法应用于沙牌碾压混凝土拱坝结构可靠度分析,得出了沙牌拱坝坝体及诱导缝可靠性指标的分布规律。

In accordance with HasoterLind's definition,the reliability calculation problem of arch dams was converted to the problem of optimization.In applying the complex method,it did not need to calculate differential of nonlinear limit functions.The method was applied to analyzed the reliability of the Shapai RCC arch dam.The reliability index β of the dam and induced joints was calculated with the method.