Effect of load distribution on IC debonding in FRP-plated RC beams

Jin Guang Teng, G. M. Chen, J. F. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Intermediate crack debonding (IC debonding) is a common failure mode for RC beams flexurallystrengthened with externally bonded FRP reinforcement. Although numerous studies have been carried out on IC debonding, the vast majority of them have been concerned with beams subjected to three- or four- point bending despite the fact that a uniformly distributed load (UDL) is a more common loading condition in practice. This paper presents the first ever finite element study into the effect of load distribution on IC debonding failure. A recently developed FE model was employed to simulate the IC debonding failure of three beams tested by other researchers under different load distributions and then to simulate the IC debonding failure of a beam under UDL. The numerical predictions are found to be in close agreement with the test re-sults and confirm the experimental observation that the IC debonding strain in the FRP plate (and hence the IC debonding moment of the strengthened section) increases as the load distribution becomes more uniform.

Original languageEnglish
Title of host publicationAdvances in FRP Composites in Civil Engineering - Proceedings of the 5th International Conference on FRP Composites in Civil Engineering, CICE 2010
PublisherSpringer
Pages485-489
Number of pages5
Publication statusPublished - 01 Jan 2011
Externally publishedYes
Event5th International Conference on FRP Composites in Civil Engineering, CICE 2010 - Beijing, China
Duration: 27 Sep 201029 Sep 2010

Conference

Conference5th International Conference on FRP Composites in Civil Engineering, CICE 2010
CountryChina
CityBeijing
Period27/09/201029/09/2010

ASJC Scopus subject areas

  • Surfaces and Interfaces

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  • Cite this

    Teng, J. G., Chen, G. M., & Chen, J. F. (2011). Effect of load distribution on IC debonding in FRP-plated RC beams. In Advances in FRP Composites in Civil Engineering - Proceedings of the 5th International Conference on FRP Composites in Civil Engineering, CICE 2010 (pp. 485-489). Springer.