Experimental Investigation of RC Beams With Opening By GFRP Laminates-A Review

Abstract: This paper presents the influence of wide web apertures in the shear zone on the response Un-strengthened and upgraded reinforced concrete (RC) beams is investigated experimentally and numerically in this work. Web openings in reinforced concrete (RC) beams are typically required for the transit of utility ducts. The use of externally bonded fibre reinforced polymer (FRP) sheets, strips, or steel plates for strengthening reinforced concrete (RC) beams is a new and convenient method for reducing beam strength caused by such openings. The use of GLASS FIBER REINFORCED POLYMER (GFRP) to strengthen and rehabilitate structures is explored in this paper. While there have been a few finite element (FE) approaches to forecasting the behaviour of such RC beams, they have been quite limited. In light of this, three different FE models for the simulation of RC beams with a FRP-strengthened rectangular web opening were constructed using ABAQUS In this study, two models based on the brittle cracking model of concrete.

Keywords: GFRP laminates, opening in beams, RC beams, strengthening methods