FLEXURAL BEHAVIOUR OF GFRP BAR REINFORCED CONCRETE BEAM WITHOUT COVER USING GFRP SHEET AS SHEAR REINFORCEMENT

Steel concrete beams are vulnerable to damage by corrosion. In order to increase the durability of RC beam, GFRP bars and GFRP sheets are used as tensile and shear reinforcement replacing steel bar. To optimize the use of corrosion resistant GFRP bars, reinforced concrete beam is made without cover to increase the effective height of the cross section. In this study, the flexural behavior of GFRP bar RC beam without cover that using GFRP sheet as shear reinforcement was investigated and compared with the conventional steel and GFRP RC beam at the same dimension and longitudinal reinforcement area. The experimental result from monotonic loading tests on the specimens showed that the flexural capacity and stiffness of GFRP bar RC beam without concrete cover using