Abstract
It is repair and reinforcement for damaged buildings that has become the main method to save investment and to avoid waste of resources. CFRP reinforcement is one of the reinforcement methods widely applied in recent years, which has advantages such as high strength, light self weight, small thickness, and good durability, etc. In this paper a reasonable constitutive model is selected and a simulation model of CFRP reinforced concrete beam is established by using ANSYS finite element software. The influences of different CFRP layers and concrete strength to the flexural property of reinforced concrete beams is analyzed in this paper. Moreover, a comparison is made with unreinforced concrete beams. The results show that the ultimate load of the beam reinforced by CFRP has greatly improved and mid-span deflection has been limited. With increase of CFRP layers, flexural property of the reinforced beam is enhanced. Under the circumstance of same number of CFRP layer, the higher the concrete strength is the better the reinforcement effect will be.
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