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 seggested design method can be used in evaluating the shear capacity of reinforced concrete columns strengthened with CFRP sheet.
Similar content being viewed by others
References
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.
CEAS1 (Chinese Engineering and Architecture Standard Institution), 2001. Technical Specification of Reinforced Concrete Structure Strengthened with Carbon Fiber Sheet (in Chinese).
CDCS (Code for Design of Concrete Structures) (GB50010-2002), 2002. Chinese Construction Industry Press (in Chinese).
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.
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).
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.
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).
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).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xie, J., Xue-mei, L. & Tong, Z. Shear capacity of reinforced concrete columns strengthened with CFRP sheet. J. Zheijang Univ.-Sci. A 6, 853–858 (2005). https://doi.org/10.1631/jzus.2005.A0853
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/jzus.2005.A0853