大跨钢斜拉桥疲劳性能研究现状与发展  

Present Study of Fatigue Performance of Long-span Steel Cable-stayed Bridge and Development

作　　者：刘勇[1] 张鹏飞[2] 

机构地区：[1]江苏省苏通大桥建设指挥部,江苏南通226009 [2]同济大学,上海200092

出　　处：《城市道桥与防洪》2010年第4期146-149,共4页Urban Roads Bridges & Flood Control

基　　金：国家科技支撑计划资助项目(2006BAG04B01)

摘　　要：该文综述了国内外钢桥疲劳研究的现状,针对斜拉桥的结构特点,分析了疲劳薄弱部位,着重讨论了钢斜拉桥疲劳性能研究的关键理论与关键技术。在此基础上,结合桥梁健康监测技术,对钢斜拉桥疲劳监测与评估系统进行了设计,并展望了该领域的研究前景。The article summarizes the actuality of the fatigue study of the steel bridges at home and abroad.According to the structure characteristic of cable-stayed bridge,the article analyzes the weak positions of fatigue,and focuses on discussion of the key theory and key technology of its fatigue performance study of steel cable-stayed bridge.On this basis,the fatigue monitoring of the steel cable-stayed bridge and the evaluation system are designed according to the bridge health monitoring technique.The article prospects the studying foreground of this domain.

关 键 词：应力集中 残余应力 疲劳监测 寿命评估 

分 类 号：U448.36[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]