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［提要］  粘貼FRP片材加固混凝土結(jié)構(gòu)的界面剝離是該加固技術(shù)的關(guān)鍵問(wèn)題。根據(jù)近年來(lái)對(duì)FRP片材加固混凝土的界面粘結(jié)性能、FRP片材加固混凝土梁的受彎和受剪剝離性能的試驗(yàn)和理論研究，介紹了FRP片材加固混凝土梁的抗彎和抗剪剝離承載力的計(jì)算和設(shè)計(jì)方法，及其有關(guān)保證剝離承載力的構(gòu)造要求。

［關(guān)鍵詞］  混凝土結(jié)構(gòu)  FRP片材  結(jié)構(gòu)加固  剝離  界面

Design Models for Debonding Strength of RC Beams Strengthened with FRP Sheets or Plates/Ye Lieping1, Lu Xinzheng1, Teng Jinguang２, Chen Jianfei3(1 Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2 Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, China; 3 Institute for Infrastructure and Environment, The University of Edinburgh, UK)

Abstract:The FRP to concrete interfacial debonding is a fundamental key problem for the strengthening of RC structures with externally bonded FRP sheets/plates. It presents the design models and detail designs on the flexural or shear debonding of RC beams strengthened with FRP sheets/plates, which is based on the latest experimental and theoretical researches on the FRP to concrete interfacial constitutive behavior, flexural and shear strengthening.

Keywords:RC Structure; FRP sheets/plates; strengthening; debonding; interface

1) 清華大學(xué)土木工程系，北京，100084； 2)香港理工大學(xué)土木工程系；3) 英國(guó)愛(ài)丁堡大學(xué)工程與環(huán)境研究院。

*國(guó)家自然科學(xué)重點(diǎn)基金項(xiàng)目(50238030);國(guó)家自然科學(xué)基金英國(guó)皇家學(xué)會(huì)國(guó)際合作項(xiàng)目(IS 16657)資助。