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CLC number: TU375

On-line Access: 2007-12-14

Received: 2007-06-29

Revision Accepted: 2007-09-20

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.1 P.38~49

10.1631/jzus.A071352


Analysis and behaviour of FRP-confined short concrete columns subjected to eccentric loading


Author(s):  Xing-fei YUAN, Shao-hua XIA, L. LAM, S.T. SMITH

Affiliation(s):  Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   yuanxf@zju.edu.cn

Key Words:  Column, FRP confinement, Stress-strain model, Section analysis, Strength, Ductility


Xing-fei YUAN, Shao-hua XIA, L. LAM, S.T. SMITH. Analysis and behaviour of FRP-confined short concrete columns subjected to eccentric loading[J]. Journal of Zhejiang University Science A, 2008, 9(1): 38~49.

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author="Xing-fei YUAN, Shao-hua XIA, L. LAM, S.T. SMITH",
journal="Journal of Zhejiang University Science A",
volume="9",
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pages="38~49",
year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A071352"
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%T Analysis and behaviour of FRP-confined short concrete columns subjected to eccentric loading
%A Xing-fei YUAN
%A Shao-hua XIA
%A L. LAM
%A S.T. SMITH
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 1
%P 38~49
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A071352

TY - JOUR
T1 - Analysis and behaviour of FRP-confined short concrete columns subjected to eccentric loading
A1 - Xing-fei YUAN
A1 - Shao-hua XIA
A1 - L. LAM
A1 - S.T. SMITH
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 1
SP - 38
EP - 49
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A071352


Abstract: 
Fibre-reinforced polymer (FRP) composites were widely utilized in civil engineering structures as the retrofit of reinforced concrete (RC) columns. To design FRP jackets safely and economically, the behaviour of such columns should be predicted first. This paper is concerned with the analysis and behaviour of FRP-confined RC circular and rectangular short columns subjected to eccentric loading. A simple design-oriented stress-strain model for FRP-confined concrete in a section analysis was first proposed. The accuracy was then proved by two test data. Following that, a parametric study including amount of FRP confinement, FRP strain capacity, unconfined concrete strength and shape of column section is provided. Some conclusions were obtained at the end of the paper. The work here will provide a comprehensive understanding of the behaviour of FRP-confined concrete columns. The simplicity of the model also enables a simple equivalent stress block to be developed for direct use in practical design.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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[2] de Lorenzis, L., Tepfers, R., 2002a. Performance Assessment of FRP-confinement Models—Part I: Review of Experiments and Models. Proceedings of the First International Conference on Advanced Polymer Composites for Structural Applications in Construction. London, UK, p.251-260.

[3] de Lorenzis, L., Tepfers, R., 2002b. Performance Assessment of FRP-confinement Models—Part II: Comparison of Experiments and Predictions. Proceedings of the First International Conference on Advanced Polymer Composites for Structural Applications in Construction. London, UK, p.261-269.

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[7] Lam, L., Teng, J.G., 2003b. Design-oriented stress-strain model for FRP-confined concrete in rectangular columns. Journal of Reinforced Plastics and Composites, 22(13):1149-1186.

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[9] Mirmiran, A., Singhvi, A., 2001. Discussion: ‘FRP-confined concrete model’. Journal of Composites for Construction, ASCE, 5(1):62-63.

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[15] Seible, F., Priestley, M.J.N., Hegemier, G.A., Innamorato, D., 1997. Seismic retrofit of RC columns with continuous carbon fiber jackets. Journal of Composites for Construction, ASCE, 1(2):52-62.

[16] Spoelstra, M.R., Monti, G., 1999. FRP-confined concrete model. Journal of Composites for Construction, ASCE, 3(3):143-150.

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[18] Xiao, Y., Wu, H., Martin, G.R., 1999. Prefabricated composite jacketing of RC columns for enhanced shear strength. Journal of Structural Engineering, ASCE, 125(3):255-264.

[19] Youssef, M.N., Feng, M.Q., Mosallam, A.S., 2007. Stress-strain model for concrete confined by FRP composites. Composites Part B: Engineering, 38(5-6):614-628.

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