Experimental Study on Bond-Slip Constitutive Relation between CFL and Concrete

X.H. Zheng; P.Y. Huang; X.Y. Guo; Q. Han

doi:10.4028/www.scientific.net/AMM.302.359

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 302Experimental Study on Bond-Slip Constitutive...

Experimental Study on Bond-Slip Constitutive Relation between CFL and Concrete

Abstract:

Externally bonded reinforcing technique with fiber reinforced polymer (FRP) has been widely used in civil engineering. The performance of the interface between FRP and concrete is one of the key factors affecting the behavior of the strengthened structures. This paper presents a detailed study on the bond-slip mechanism between carbon fiber laminate (CFL) and concrete based on double-shear tests. 8 specimens with different bonded length and width of CFL were tested under static loading. Strain gauges along the CFL face and displacement sensor were used to measure longitudinal strains and slip of the interface. The bond-slip constitutive relation of the interface between CFL and concrete was analyzed with the testing results. Compared with four different bond-slip models, a shear stress-slip model was proposed based on the experimental data.

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Periodical:

Applied Mechanics and Materials (Volume 302)

Pages:

359-364

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.302.359

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Online since:

February 2013

Authors:

X.H. Zheng, P.Y. Huang, X.Y. Guo, Q. Han

Keywords:

Bond-Slip, Carbon Fiber Laminate (CFL), Constitutive Relation, Double Shear Test, Interface

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