摘要
基于概率断裂力学理论、Matlab统计和优化工具箱,采用Monte-Carlo模拟方法和可靠度最优化方法,对赣江大桥一钢构件的剩余疲劳寿命及其可靠度进行分析。利用Matlab的数值计算功能解决了用Monte-Carlo法直接抽样的困难;同时Matlab的优化功能简化了计算过程,提高了计算效率。
Based on the probabilistic fracture mechanics theory, the Matlab statistics and optimization tool box, the Monte-Carlo simulation method and reliability optimization method are used to analyze the remaining fatigue life and its reliability of the steel members of Ganjiang River Bridge. The utilization of the numerical calculation function of the Matlab successfully tackles the difficulty of direct sampling by the Monte-Carlo simulation method. At the same time, the powerful optimization function of the Matlab also simplifies the calculation process and improves the calculation efficiency.
出处
《桥梁建设》
EI
CSCD
北大核心
2008年第1期30-32,36,共4页
Bridge Construction
关键词
钢结构
概率断裂力学
疲劳剩余寿命
可靠度
steel structure
probabilistic fracture mechanics
remaining fatigue life
reliability
