Computers and Concrete

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Reinforced concrete corbels strengthened with carbon fiber reinforced plastics

  • Lu, Wen-Yao (Department of Interior Design, China University of Technology) ;
  • Yu, Hsin-Wan (Department of Civil Engineering and Hazard Mitigation Design, China University of Technology) ;
  • Chen, Chun-Liang (Department of Interior Design, China University of Technology) ;
  • Yang, Tzong-Hwan (Department of Interior Design, China University of Technology) ;
  • Lin, Yu-Sin (Department of Interior Design, China University of Technology)
  • Received : 2011.08.11
  • Accepted : 2012.03.24
  • Published : 2012.09.25
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Abstract

A total of nine reinforced concrete corbels were tested, in this study. Six were externally strengthened with carbon fiber reinforced plastics (CFRP), in the horizontal direction. The cross-sectional area of CFRP and the shear span-to-effective depth ratios are the parameters considered, in this study. Test results indicate that the higher the cross-sectional area of CFRP, the higher is the shear strength of the corbels, and the lower the shear span-to-effective depth ratios, the higher is the shear strength of corbels. The shear strength predicted by the design provisions in section 11.8 of the ACI Code, the strut-and-tie model in Appendix A of the ACI Code, and the softened strut-and-tie (SST) model were compared with the test results. The comparisons show that both the strut-and-tie model in Appendix A of the ACI Code, and the SST model can accurately predict the shear strength of reinforced concrete corbels, strengthened with CFRP.

Keywords

Acknowledgement

Supported by : National Science Council

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