1 Post graduation Student, Civil Engineering Department Indian Institute of Technology, Kharagpur, India
2 Professor, Civil Engineering Department Indian Institute of Technology, Kharagpur, India
In modern building construction opening in beams are more often used to provide passage for utility duct and pipes. As a result storey height and material cost can be reduced. However providing an opening in the beam causes crack around opening reduces stiffness and also leads to more complicated structural response. In this paper the use of Glass Fiber Reinforced Polymer (GFRP) to strengthen and rehabilitate are discussed. In this experiment 10 beams, one solid as reference beam and other nine beams categorized as beams with openings, strengthened beams and rehabilitated beams are tested. The effect of FRP on the deflection pattern, cracking, strain near vicinity, initial crack load, and ultimate failure load are discussed. This investigation may help the designer to provide sufficient opening in the beams without reducing its carrying capacity furthermore, help to understand the behavior of retrofitted beams with openings.
Reinforced Concrete Beam, Rectangular Opening, GFRP, Strengthening, Rehabilitation
