Experimetal study on the FRP-concrete bond behavior under repeated loadings

J. Y. Lee; C. K. Yi; Y. G. Cheong

doi:10.1007/s11029-010-9117-2

Experimetal study on the FRP-concrete bond behavior under repeated loadings

J. Y. Lee, C. K. Yi, Y. G. Cheong

School of Civil, Environmental and Architectural Engineering

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

In this study, the effects of repeated loads on the FRP-concrete bond strength were investigated experimentally by direct pull out tests according to CSA S806-02. A conventional reinforcing steel bar and two types of glass-fiber-reinforced plastic (GFRP) bars were embedded in concrete and tested under four different loading patterns. The bond strength-slip curves of the bars were obtained and analyzed. The results showed that the maximum bond strengths under the repeated loads differed from those obtained under monotonic ones. In addition, noticeable differences in degradation of the bond strength with respect to the magnitude of slip were observed between the different bar types tested. On the basis of an image analysis of failure surfaces, they were attributed to the different bond failure mechanisms associated with the steel and GFRP bars.

Original language	English
Pages (from-to)	609-618
Number of pages	10
Journal	Mechanics of Composite Materials
Volume	45
Issue number	6
DOIs	https://doi.org/10.1007/s11029-010-9117-2
Publication status	Published - 2009 Nov

Keywords

Bond failure surface
Bond strength
Concrete strength
Glass-fiber-reinforced polymer bars

ASJC Scopus subject areas

Ceramics and Composites
Biomaterials
Mathematics(all)
Condensed Matter Physics
Mechanics of Materials
Polymers and Plastics

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Lee, J. Y., Yi, C. K., & Cheong, Y. G. (2009). Experimetal study on the FRP-concrete bond behavior under repeated loadings. Mechanics of Composite Materials, 45(6), 609-618. https://doi.org/10.1007/s11029-010-9117-2

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