Shear behaviour of reinforced concrete beams with small web openings

In the current investigation, four reinforced concrete beams with square cross sectional area were poured and tested up to failure under action of three-point loads. Three them designed contain small web openings different shapes, square, rectangular circular while other beam had no (control beam) for purpose comparison findings. The load–deflection traces successfully obtained specimens. results indicated that perforating leads a slight reduction in their ultimate loads corresponding an increase deflection. Also, it was concluded better shear resistance than shapes selected here.