Effect of Bar Diameter on Shear Capacity of Reinforced Concrete Beams with Flamingo Shear Rein forcing technique

Abstract

An alternative shear reinforcement technique has been proposed which is the flamingo technique, instead of the traditional vertical stirrup, it is made prefabricated. Five reinforced concrete beams were used with dimensions (200 x 300 x 1800) mm, two reference (with stirrups and without stirrups) and three beams using flamingo technique having free ends, constant inclination angle (45°), and fixed length of effective depth were used by (80%, 60%) mm. This study aims to determine how a change in diameter affects the Flamingo technique. The diameters used are (6, 8, 10) mm. According to the results, found that there was a significant improvement in the shearing capacity of the beams by (13.88%,25%and 40.55% )from reference beam, as well as the end cracks, and the behavior of the cracked beam. , when compared with the control (RCWS) beam, the (FD6, FD8 FD10) beams showed deflection decreases of 32.8%, 11.3% and 14.8%, respectively,