BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS DEEP BEAMS WITH OPENINGS

Abstract

In this research, after conducting experimental work, the behavior of reinforced concrete continuous deep beams with openings was studied. One model was also strengthened using NSM and using vertical reinforcement bars to apply the reinforcement. All beams were tested under two-point top loading. Seven continuous beams were tested, one as a reference without openings and three with openings, once and once after applying reinforcement to them. The results proved that the beam with four openings reduced the bearing capacity to 50%, while the beams with two external and internal openings decreased by (21.276%-14%), respectively. As for the results of the strengthening process, it increased the bearing capacity of the beams with four openings and those with two external and internal openings to 7.894%, 10.638% and 22%, respectively