Quasi-plane-hypothesis of strain coordination for RC beams seismically strengthened with externally-bonded or near-surface mounted fiber reinforced plastic

查看全文 作　　者：Ren [1]Zhenhua;Zeng [1]Xiantao;Liu [2]Hanlong;Zhou [3]Fengjun

机构地区：[1]School of Building Engineering of Hunan Institute of Engineering;[2]College of Civil and Transportation Engineering,Hohai University;[3]The fourth Engineer Scientific Research Institute of the Headquarters of the General Staff

出　　处：《Earthquake Engineering and Engineering Vibration》索引2013年第12卷第1期,共10页

基　　金：Consultative Program of the Chinese Academy of Engineering;the foundation for Excellent Young of Hunan Scientific Committee;the National Natural Science Foundation of Hunan Province;the Science and Research Program of Hunan Province 摘　　要：The application of fiber reinforced plastic(FRP),including carbon FRP and glass FRP,for structural repair and strengthening has grown due to their numerous advantages over conventional materials such as externally bonded reinforcement(EBR) and near-surface mounted(NSM) strengthening techniques.This paper summarizes the results from 21 reinforced concrete beams strengthened with different methods,including externally-bonded and near-surface mounted FRP,to study the strain coordination of the FRP and steel rebar of the RC beam.Since there is relative slipping between the RC beam and the FRP,the strain of the FRP and steel rebar of the RC beam satisfy the quasi-plane-hypothesis;that is,the strain of the longitudinal fiber that parallels the neutral axis of the plated beam within the scope of the effective height(h 0) of the cross section is in direct proportion to the distance from the fiber to the neutral axis.The strain of the FRP and steel rebar satisfies the equation:ε FRP =βε steel,and the value of β is equal to 1.1-1.3 according to the test results. 关键词：纤维增强塑料应变协调平面假设表面贴装钢筋混凝土梁 RC梁地震表面安装

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Quasi-plane-hypothesis of strain coordination for RC beams seismically strengthened with externally-bonded or near-surface mounted fiber reinforced plastic

参考文献(15)

引证文献(3)

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