铁道科学与工程学报2018，Vol.15Issue(2)：422-426,5.
基于逆可靠度理论的连续刚构桥稳定性分析
Stability analysis of the continuous rigid frame bridge based on inverse reliability method
摘要
Abstract
In view of the inefficiency of the trial method in calculating the inverse reliability, this paper proposed an inverse reliability solution algorithm based on the parabolic equation method. The stability of one continuous rigid frame bridge at the maximum cantilever stage was assessed using the proposed method. The calculated safety factor can not only consider randomness of parameters but satisfy prescribed target reliability index. The influence of the uncertainty of parameters on safety factor was analyzed. The results show that the proposed inverse reliability method has obvious advantages of high efficiency and accuracy, and the parameter variability has a major effect on safety factor of rigid frame bridge. Ignoring the parameter variability will produce overestimation of safety factor.关键词
桥梁工程/稳定性/逆可靠度/连续刚构桥/稳定安全系数/目标可靠指标Key words
bridge engineering/stability/inverse reliability method/continuous rigid frame bridge/stability safety factor/target reliability index分类
交通工程引用本文复制引用
金辉,朱谊彪,徐岳,董峰辉,何磊..基于逆可靠度理论的连续刚构桥稳定性分析[J].铁道科学与工程学报,2018,15(2):422-426,5.基金项目
浙江省自然科学基金资助项目(LY15E080003) （LY15E080003）
浙江省交通厅科技资助项目(2013H29-1) （2013H29-1）
