Abstract
Abstract The Static and cyclic behaviour of RC beams strengthened with Carbon Fibre Reinforced Polymer (CFRP) sheet is presented in this paper. The experimental program includes four rectangular cross section beams of size 100*150*1500 mm and manufactured with M30 grade concrete and Fe500 steel. Over all four beams, two control and two strengthened beams were tested under four-point loading. Two beams wrapped with CFRP sheet with end anchorage in U-Shape manner. The reinforced concrete control beam and CFRP wrapped beam has been tested and the behaviour under static and cyclic loading has been noticed. The work carried out has examined the strengthening capacities of RC beams retrofitted with CFRP sheet is larger than the control beam. The impact of CFRP sheets was adequate on expanding the flexural strength of reinforced concrete beams and the ductility of the beams was decreased. The Strength increase brought about by CFRP sheet in U-Shape is 12.8% in static load and 7.87% in cyclic load when compared with control beam. The Investigational results shows that the externally bonded CFRP sheet can increase the shear strength of the beam significantly along with improving the performance of strengthened RC beams.
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