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Computers and Concrete Volume 10, Number 3, September 2012 , pages 259-276 DOI: https://doi.org/10.12989/cac.2012.10.3.259 |
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Reinforced concrete corbels strengthened with carbon fiber reinforced plastics |
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Wen-Yao Lu, Hsin-Wan Yu, Chun-Liang Chen, Tzong-Hwan Yang and Yu-Sin Lin
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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 strutand- 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. | ||
| Key Words | ||
| reinforced concrete corbel; shear strength; carbon fiber reinforced plastics (CFRP). | ||
| Address | ||
| Wen-Yao Lu: Department of Interior Design, China University of Technology, Taipei 11695, Taiwan, R.O.C.; Hsin-Wan Yu: Department of Civil Engineering and Hazard Mitigation Design, China University of Technology, Taipei 11695, Taiwan, R.O.C.; Chun-Liang Chen, Tzong-Hwan Yang and Yu-Sin Lin: Department of Interior Design, China University of Technology, Taipei 11695, Taiwan, R.O.C. | ||