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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.8 P.853~858

10.1631/jzus.2005.A0853


Shear capacity of reinforced concrete columns strengthened with CFRP sheet


Author(s):  XIE Jian, LIU Xue-mei, ZHAO Tong

Affiliation(s):  Department of Civil Engineering, Tianjin University, Tianjin 300072, China

Corresponding email(s):   xiejian@eyou.com, sunatman@126.com, tzhao0@engr.uky.edu

Key Words:  Reinforced concrete, Carbon fiber reinforced plastic (CFRP), Column, Shear capacity


XIE Jian, LIU Xue-mei, ZHAO Tong. Shear capacity of reinforced concrete columns strengthened with CFRP sheet[J]. Journal of Zhejiang University Science A, 2005, 6(8): 853~858.

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author="XIE Jian, LIU Xue-mei, ZHAO Tong",
journal="Journal of Zhejiang University Science A",
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pages="853~858",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0853"
}

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T1 - Shear capacity of reinforced concrete columns strengthened with CFRP sheet
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J0 - Journal of Zhejiang University Science A
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A0853


Abstract: 
This paper discusses the results of tests on the shear capacity of reinforced concrete columns strengthened with carbon fiber reinforced plastic (CFRP) sheet. The shear transfer mechanism of the specimens reinforced with CFRP sheet was studied. The factors affecting the shear capacity of reinforced concrete columns strengthened with CFRP sheet were analyzed. Several suggestions such as the number of layers, width and tensile strength of the CFRP sheet are proposed for this new strengthening technique. Finally, a simple and practical design method is presented in the paper. The calculated results of the suggested method are shown to be in good agreement with the test results. The suggested design method can be used in evaluating the shear capacity of reinforced concrete columns strengthened with CFRP sheet.

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

Reference

[1] ACI (American Concrete Institute) Committee 440, 2002. Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures, Technical Committee Document, 440.2R-02, p.45.

[2] CEASI (Chinese Engineering and Architecture Standard Institution), 2001. Technical Specification of Reinforced Concrete Structure Strengthened with Carbon Fiber Sheet (in Chinese).

[3] CDCS (Code for Design of Concrete Structures) (GB50010(2002), 2002. Chinese Construction Industry Press (in Chinese).

[4] Xiao, Y., Wu, H., Martin, G.R., 1999. Prefabricated composite jacketing of reinforced concrete column for enhanced shear strength. Journal of Structural Engineering, 125(3):255-264.

[5] Ye, L.P., Zhao, S.H., Li, Q.W., Yue, Q.R., Zhang, K., 2000. Calculating shear capacity of the reinforced concrete column confined by carbon fiber sheet. Journal of Building Structures, 21(2):59-67 (in Chinese).

[6] Ye, L.P., Yue, Q.R., Zhao, S.H., Li, Q.W., 2002. Shear strength of reinforced concrete columns strengthened with carbon-fiber-reinforced plastic sheet. Journal of Structural Engineering, 128(12):1527-1534.

[7] Zhao, T., Xie, J., Dai, Z.Q., 2000. Experimental research on the stress-strain curve of concrete confined by carbon fiber sheet. Building Structure, 30(7):40-43,64 (in Chinese).

[8] Zhao, T., Zhou, X.J., Xie, J., 2002. Research on improving seismic behavior of reinforced concrete short columns with continuous carbon fiber sheet. Earthquake Engineering and Engineering Vibration, 22(1):85-91 (in Chinese).

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