外黏贴加固钢筋混凝土梁黏结界面应力分析  

Analysis of stress on bonding layer in RC beams strengthened with external plate

作　　者：洪芳[1] 张铮[1] 

机构地区：[1]福建工程学院土木工程学院,福州350118

出　　处：《河南理工大学学报（自然科学版）》2013年第4期496-500,共5页Journal of Henan Polytechnic University（Natural Science）

基　　金：福建省教育厅科技重点项目(福建省高校服务海西建设重点项目)(闽教高[2009]8号);福建工程学院科研发展基金资助项目(GY-Z10086)

摘　　要：基于弹性理论,推导外黏贴加固钢筋混凝土梁在两个对称集中力作用下加强片材与混凝土交界面上的应力计算表达式,并分析应力分布的各影响因素.根据加固钢筋混凝土梁中各种组成材料的特点,分别选用整体式模型和分离式模型,建立外黏贴加固钢筋混凝土梁的有限元模型,用ANSYS软件对在对称集中静载作用下的界面应力进行有限元分析,并与弹性理论分析的解析解作比较.The analysis is performed for a reinforced concrete（RC） beam strengthened with an external bonding plate due to the action of a symmetrical concentrated force.Based on elastic theory,the stress expression of a bonding layer between the reinforced materials and the concrete is written.And the factors influencing the stress distribution are discussed.According to the material characteristics,a finite element model is established by employing a global model and a separate model,respectively.The bond stress distribution under a symmetrical concentrated force is analyzed with ANSYS software and the result is compared with that of its analytical solution.

关 键 词：加固 黏贴 钢筋混凝土梁 黏结应力 有限元分析 

分 类 号：TU375.1[建筑科学—结构工程]