摘要
为了探讨随机可靠度反问题计算理论在大跨度桥梁控制中的应用,采用一次二阶矩法(改进的验算点法)对一斜拉桥主梁作了静力可靠性及相应的反问题分析,讨论了斜拉桥主梁的弯曲和扭转两种强度破坏失效模式,给出了主梁在两种失效模式下的可靠性及相关反问题的数值计算结果,并对有关结果进行分析。表明该理论对桥梁设计参数的控制具有指导作用。
The stochastic reliability inverse problem theory was used to do a static reliability analysis for the
girder of a given cable-stayed bridge to demonstrate the application and the efficiency of the algorithm. It is
concluded that the reliability inverse problem theory is useful to guide the construction of the bridges through the control of some primary design parameters.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2004年第2期258-260,共3页
Journal of Harbin Institute of Technology
关键词
斜拉桥
主梁
可靠度
一次二阶矩法
设计参数
reliability index
first-order second-moment method
inverse reliability problem
cable-stayed bridge
girder
design parameters
