Experimental Investigation of Torsional Behaviour of Glass Fibre Wrapped Reinforced Concrete Beam

This paper investigates the torsional behaviour of reinforced concrete beams strengthened with glass fibre reinforced polymer (GFRP). The effect of GFRP wrapping on the torsional strength of the beam is examined. Totally nine beams of length 2500mm, width 150mm and depth 250mm were casted and tested. The U like jacketing strips of 50mm with different spacing of 0.5D and 0.75D spacing were followed for torsional strengthening. The experimental study shows that the GFRP wrapping increase the torsional strength of the reinforced concrete beams.