Shear Resistance of RC Beams Strengthened with Combined CFRP and Steel Plate

Abstract:

The purpose of this study is to investigate shear performance of RC beams strengthened with combined CFRP and steel plates. Fourteen beams were tested to shear failure under simply supported four-point loading conditions. The variables of this investigation included strengthening technique, shear span to depth ratio, percentage of CFRP, percentage of steel plate, CFRP and steel plate orientation, CFRP and steel plate wrapping type. The results show that the simultaneous application of CFRP sheets and steel plate greatly increases the shear resistance of RC beams. The steel plates improve the bond behavior of CFRP sheets. A design formula is proposed to calculate the shear resistance of the beams strengthened with combined CFRP sheets and steel plates. The predictions agree well with the test results.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 219-223
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.219
• Online since: September 2014
• Authors: Yi Yan Lu, Na Li*, Shan Li
• Keywords: CFRP Sheet, RC Beam, Shear Resistance, Steel Plate, Strengthening

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