Bond-slip model for CFRP strips near-surface mounted to concrete

S. S. Zhang; Jinguang Teng; T. Yu

doi:10.1016/j.engstruct.2013.05.032

Bond-slip model for CFRP strips near-surface mounted to concrete

S. S. Zhang, Jinguang Teng, T. Yu

Research output: Journal article publication › Journal article › Academic research › peer-review

85 Citations (Scopus)

Abstract

A relatively recent method for the strengthening of concrete structures involves the embedding of fiber reinforced polymer (FRP) bars/strips into pre-cut, adhesive-filled grooves in the cover concrete. This paper presents a finite element (FE) study into the bond behavior of NSM CFRP strip-to-concrete bonded joints using a three-dimensional (3-D) meso-scale FE model developed by the authors. The effects of various parameters on the bond behavior of NSM CFRP strips are first clarified with the assistance of FE results, leading to the identification of the groove height-to-width ratio and the concrete strength as the two important parameters for the bond behavior. Based on the results of a FE parametric study on the effects of these two parameters, an analytical bond-slip model is proposed.

Original language	English
Pages (from-to)	945-953
Number of pages	9
Journal	Engineering Structures
Volume	56
DOIs	https://doi.org/10.1016/j.engstruct.2013.05.032
Publication status	Published - 1 Nov 2013

Keywords

Bond-slip model
Finite element method (FEM)
FRP strips
Near surface mounted (NSM) FRP

ASJC Scopus subject areas

Civil and Structural Engineering

More information

10.1016/j.engstruct.2013.05.032

Cite this

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title = "Bond-slip model for CFRP strips near-surface mounted to concrete",

abstract = "A relatively recent method for the strengthening of concrete structures involves the embedding of fiber reinforced polymer (FRP) bars/strips into pre-cut, adhesive-filled grooves in the cover concrete. This paper presents a finite element (FE) study into the bond behavior of NSM CFRP strip-to-concrete bonded joints using a three-dimensional (3-D) meso-scale FE model developed by the authors. The effects of various parameters on the bond behavior of NSM CFRP strips are first clarified with the assistance of FE results, leading to the identification of the groove height-to-width ratio and the concrete strength as the two important parameters for the bond behavior. Based on the results of a FE parametric study on the effects of these two parameters, an analytical bond-slip model is proposed.",

keywords = "Bond-slip model, Finite element method (FEM), FRP strips, Near surface mounted (NSM) FRP",

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AU - Zhang, S. S.

AU - Teng, Jinguang

AU - Yu, T.

PY - 2013/11/1

Y1 - 2013/11/1

N2 - A relatively recent method for the strengthening of concrete structures involves the embedding of fiber reinforced polymer (FRP) bars/strips into pre-cut, adhesive-filled grooves in the cover concrete. This paper presents a finite element (FE) study into the bond behavior of NSM CFRP strip-to-concrete bonded joints using a three-dimensional (3-D) meso-scale FE model developed by the authors. The effects of various parameters on the bond behavior of NSM CFRP strips are first clarified with the assistance of FE results, leading to the identification of the groove height-to-width ratio and the concrete strength as the two important parameters for the bond behavior. Based on the results of a FE parametric study on the effects of these two parameters, an analytical bond-slip model is proposed.

AB - A relatively recent method for the strengthening of concrete structures involves the embedding of fiber reinforced polymer (FRP) bars/strips into pre-cut, adhesive-filled grooves in the cover concrete. This paper presents a finite element (FE) study into the bond behavior of NSM CFRP strip-to-concrete bonded joints using a three-dimensional (3-D) meso-scale FE model developed by the authors. The effects of various parameters on the bond behavior of NSM CFRP strips are first clarified with the assistance of FE results, leading to the identification of the groove height-to-width ratio and the concrete strength as the two important parameters for the bond behavior. Based on the results of a FE parametric study on the effects of these two parameters, an analytical bond-slip model is proposed.

KW - Bond-slip model

KW - Finite element method (FEM)

KW - FRP strips

KW - Near surface mounted (NSM) FRP

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DO - 10.1016/j.engstruct.2013.05.032

M3 - Journal article

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SP - 945

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JO - Engineering Structures

JF - Engineering Structures

ER -

Bond-slip model for CFRP strips near-surface mounted to concrete

Abstract

Keywords

ASJC Scopus subject areas

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