Experimental study of flexural behaviour of GFRP reinforced concrete beams

ABSTRACT

Concrete members reinforced with fibre-reinforced polymers (FRP) exhibit large deflections and crack widths compared with steel reinforced concrete members, due to the low modulus of elasticity of FRP. This study presents the results and discussion of experimental tests under four-point bending load for 24 Glass-FRP (GFRP) reinforced concrete beams. The main purpose of the study is the evaluation of short-term serviceability behaviour. The effects of the strength of concrete, the reinforcement ratio and the effective depth on deflection are investigated