考虑荷载历史的既有桥梁结构可靠度分析方法  

Reliability Analysis of Existing Bridge Structures with Consideration of Load History

作　　者：王红[1] 禹智涛[1] 

机构地区：[1]广东工业大学建设学院,广东广州510640

出　　处：《中南公路工程》2004年第3期11-14,共4页Central South Highway Engineering

基　　金：广东省自然科学基金资助项目(20010018);广东工业大学青年基金资助项目(202032)。

摘　　要：针对既有桥梁结构的特点,建立了考虑荷载历史的可靠度分析模型,并讨论了其计算方法。应用所研究的方法,对一座实际钢筋混凝土桥梁的承载能力可靠度进行了分析和评估;结果表明,荷载历史对该桥可靠度提高的影响不容忽视。Models of reliability analysis were established and calculation methods of the models were discussed with consideration of load history for the evaluation of existing bridge structures. Using the methods presented, the reliability of load-bearing capacity for an actual reinforced concrete bridge was analyzed and es?timated. Results of the analysis showed that the influence of load history on the increase in reliability of the bridge could not be neglected.

关 键 词：梁结构 荷载 可靠度分析 承载能力 计算方法 既有桥梁 钢筋混凝土桥梁 

分 类 号：U441[建筑科学—桥梁与隧道工程] TU311[交通运输工程—道路与铁道工程]