［提要］  粘贴FRP片材加固混凝土结构的界面剥离是该加固技术的关键问题。根据近年来对FRP片材加固混凝土的界面粘结性能、FRP片材加固混凝土梁的受弯和受剪剥离性能的试验和理论研究，介绍了FRP片材加固混凝土梁的抗弯和抗剪剥离承载力的计算和设计方法，及其有关保证剥离承载力的构造要求。

［关键词］  混凝土结构  FRP片材  结构加固  剥离  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) 清华大学土木工程系，北京，100084； 2)香港理工大学土木工程系；3) 英国爱丁堡大学工程与环境研究院。

*国家自然科学重点基金项目(50238030);国家自然科学基金英国皇家学会国际合作项目(IS 16657)资助。