摘要
本文采用快速收敛的改进的蒙特卡罗方法 ,计算了 2 5 2个标准设计桥台的抗滑稳定可靠指标 ,基本得到了现行标准设计桥台的可靠度水平。经检算 ,所计算混凝土台身及基础桥台的可靠指标平均值 ,有水时为 4.0 41、无水时 3.745 ;变异系数为 :有水时 0 .1 4 2、无水时 0 .1 5 4。所计算片石台身及基础桥台的可靠指标平均值为 :有水时 4.1 38、无水时 3.883;变异系数为 :有水时 0 .1 2 6、无水时 0 .1 5 2。
In this paper, the reliability on stability against sliding of 252 railway abutments has been calcuated with improved Monte Carlo method. The reliability level of active standardized design has been found. By calculating, the mean value with water and without water of concrete abutment are 4.041 and 3.745 respectively, the variation are 0.142 and 0.154 respectively, the mean value with water and without water of ragstone abutment are 4.138 and 3.883 respectively, the variation are 0.126 and 0.152 respectively. Through these results, the influence on reliability of main random variables has been analyzed.
出处
《铁道工程学报》
EI
2000年第1期49-54,共6页
Journal of Railway Engineering Society
