Debonding failure modes of flexural FRP-strengthened RC beams

被引：124
作者：
Aram, Mohammad Reza [1 ,2 ]
Czaderski, Christoph [1 ]
Motavalli, Masoud [1 ,2 ]
机构：
[1] Empa, Struct Engn Res Lab, CH-8600 Dubendorf, Switzerland
[2] Univ Tehran, Fac Civil Engn, Tehran, Iran
来源：
COMPOSITES PART B-ENGINEERING | 2008年 / 39卷 / 05期
关键词：
carbon fibre; debonding; flexural strengthening; analytical modelling; finite element analysis;
D O I：
10.1016/j.compositesb.2007.10.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, different types of debonding failure modes are described. Then, experimental results of four-point bending tests on FRP strengthened RC beams are presented and debonding failure mechanisms of strengthened beams are investigated using analytical and finite element solutions. Reasonable results could be obtained for modelling of debonding failure load of tested beams. Existing international codes and guidelines from organizations such as ACI,fib, ISIS, JSCE, SIA, TR55, etc. are presented and compared with the results from the experiments and calculations. A discrepancy of up to 250% was seen between different codes and guidelines for predicting the debonding load. Furthermore, a new recommendation for debonding control is given. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：826 / 841
页数：16
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