基于损伤退化模型的钢筋混凝土梁式桥加固计算方法研究  

Researches on R.C.Beam-type Bridge Strengthening Calculation Method Based on Damage and Degradation Model

作　　者：李隆[1] 任更锋[1] 魏炜[1] 徐岳[1] 

机构地区：[1]长安大学公路学院,陕西西安710064

出　　处：《公路交通科技》2006年第S1期120-123,共4页Journal of Highway and Transportation Research and Development

基　　金：西部交通建设科技项目(200131822358)

摘　　要：为了客观反映材料退化、结构损伤、运营环境变化及结构工作状态改变等因素对桥梁承载能力的影响,分析了桥梁加固计算的特点,给出了基于损伤退化模型的钢筋混凝土梁式桥正截面及斜截面承载能力计算公式,提出了结构加固计算的一般步骤,并以工程实例给出了具体应用方法。In order to objectively reflect the influence to bearing capacity from the factors like material degradation,structure damage,operating environment change and the working state change of structure and so on,the bridge strengthening calculus characterisitc is analyzed.Bearing capacity computing formula of normal section and inclined cross-section of R.C.beam-type bridge is geven here.The general procedures of strengthening calculation based on damage and degradation model are represented and are used by an e...

关 键 词：钢筋混凝土梁式桥 加固 计算方法 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]