Effect of Bond Property Between CFRP Bar and Concrete on Nonlinear Behavior of Circular CFRP Reinforced Concrete Beams

Carbon fiber reinforced polymer (CFRP) bars present advantages over conventional steel rebars such as non-corrosiveness and relatively high tensile strength. CFRP cannot directly substitute the main reinforcement for concrete structures due to a lack of understanding behavior CFRP-reinforced (RC) members. This research investigates effect surface characteristics deformed FRP on bond between concrete. Moreover, aims understand how property affects RC beams under shear load. An analysis was conducted better this matter by producing different models with reproductive pull-out test that takes into consideration aspect bar. The structural using proposed conducted. It observed affect bond-slip curves in way ribbed type presents higher strength greater stiffness modulus than dented type. In addition, model tends generate steeper diagonal cracks leading failure beams.