EFFECT OF SHEAR SPAN RATIO ON THE FRACTURE OF DEEP BEAMS

Abstract

Shear resistance of deep beams with a small shear span ratio and containing shear reinforcement was studied by conducting vertical loading tests on simple beam specimens. Parameters used were the shear span ratio (a/d), shear reinforcement ratio, and effective depth. It was found that the fracture mode of beams with a/d=1.5 is different from that of beams with a/d=0.5 and a/d=1.0, and that shear reinforcement can provide sufficient shear resistance by controlling the crack width effectively.