摘要
将拱坝的主要荷载及材料参数看作随机变量,并考虑其相关性,以Ansys5.7随机有限元作为一个模块,结合某拱坝进行了蒙特卡罗随机模拟,得出拱坝各响应量(随机变量)的统计量,以及随机变量对功能函数的敏感性,再利用最大熵法得到各随机变量的概率密度函数,然后用数值积分求得拱坝可靠度指标的分布.
An arch dam was stochastically simulated by using Ansys 5.7 stochastic finite element program considering the main loads of a dam and parameters of the materials. The statistical values of the arch dam's stochastic variable and the sensitivity of the stochastic variable to functional function were calculated. And the probabilistic density function of the stochastic variable as gained by the maximum entropy method. Then the distribution of reliability index of the dam as calculated by using numerical integrator.
出处
《水利水运工程学报》
CSCD
北大核心
2003年第2期24-28,共5页
Hydro-Science and Engineering
基金
水利部科技创新项目(59778002)
