Flexural Behaviour of RC Beams Retrofitted with GFRP: An Experimental Approach
- Vol.94(3), March
- Thane ACC LTD 2020
- 38-44p.
Fiber Reinforced Polymer (FRP) has been recognized as an efficient retrofit material for structures worldwide. The present study involved casting and testing of twenty one RC beams strengthened with single, double and triples layers of externally bonded GFRP of varying gsm. The virgin and repaired reinforced concrete (RC) beams were tested up to ultimate load using four-point loading. The effects of number of layers and varying weights of Glass Fiber Reinforced Polymer (GFRP) on the flexural strength, deflection, failure modes are reported in this paper. The tests results were validated with analytical models as per ACI 440.2R-08 recommendation. The findings of this shows that the ultimate load carrying capacity of strengthened beams were enhanced up to 40% as compared to referenced specimens.