FEM performance of concrete beams reinforced by carbon fiber bars

Building and Construction Engineering Department, University of Technology, Baghdad, Iraq

Abstract

Concrete structures may be vulnerable to harsh environment, reinforcement with Fiber Reinforced Polymer (FRP) bars have an increasing acceptance than normal steel. The nature of (FRP) bar is (non-corrosive) which is very beneficial for increased durability as well as the reinforcement of FRP bar has higher strength than steel bar. FRP usage are being specified more and more by public structural engineers and individual companies as main reinforcement and as strengthening of structures. Steel reinforcement as compared to (FRP) reinforcement are decreasingly acceptable for structural concrete reinforcement including precast concrete, cast in place concrete, columns, beams and other components. Carbon Fiber Reinforcement Polymer (CFRP) have a very high modulus of elasticity “high modulus” and very high tensile strength. In aerospace industry, CFRP with high modulus are popular among all FRPs because it has a high strength to weight ratio. In this research, a finite element models will be used to represent beams with Carbon Fiber Reinforcement and beams with steel reinforcement. The primary objective of the research is the evaluation of the effect of (CFR) on beam reinforcement.