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

Gui Bing Li; Yu Gang Guo; Xiao Yan Sun

doi:10.4028/www.scientific.net/AMM.71-78.1469

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 71-78Evaluation of Allowable FRP Tensile Strain in Main...

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

Abstract:

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.

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Periodical:

Applied Mechanics and Materials (Volumes 71-78)

Pages:

1469-1472

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.71-78.1469

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Online since:

July 2011

Authors:

Gui Bing Li, Yu Gang Guo, Xiao Yan Sun

Keywords:

Allowable FRP Tensile Strain, Debonding Failure, FRP-Strengthened, RC Beam

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