Evaluation of Allowable FRP Tensile Strain in Main Codes for Mitigation of Debonding Failure in FRP-Strengthened RC Beams

Intermediate crack-induced debonding is one of the most dominant failure modes in FRP-strengthened RC beams. Different code models and provisions have been proposed to mitigate intermediate crack-induced debonding failure. Out of all the existing code provisions and models, six typical ones are inve...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 71-78; pp. 1469 - 1472
Main Authors Guo, Yu Gang, Sun, Xiao Yan, Li, Gui Bing
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.07.2011
Subjects
RC Beam
Allowable FRP Tensile Strain
Debonding Failure
FRP-Strengthened
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Summary:Intermediate crack-induced debonding is one of the most dominant failure modes in FRP-strengthened RC beams. Different code models and provisions have been proposed to mitigate intermediate crack-induced debonding failure. Out of all the existing code provisions and models, six typical ones are investigated in the current study. These available guidance for mitigating debonding failure of externally bonded fiber reinforced polymer composites applied to concrete is evaluated based on data obtained from experimental programs. It is shown that the current recommendations are inadequate to effectively mitigate intermediate crack-induced debonding in flexural members.
Bibliography:Selected, peer reviewed papers from the 2011 International Conference on Green Building, Materials and Civil Engineering, (GBMCE 2011), Shangri-La, China, August 22-23, 2011
ISBN:9783037852033
3037852038
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.71-78.1469