Torsional performance of low strength RC concrete beams strengthened with high-ductile metal straps

Abstract

This research studies the Torsional performance of low strength RC concrete beams strengthened with post–tension metal strapping technique. The torsion that causes structural damage in reinforced concrete buildings may be a result of the load being focused at the center, or by an earthquake resulting in a structure twisting. The test consists of 4 reinforced concrete beam samples. The variable studies low strength concrete has the compressive strength (15 MPa), shear reinforcement ratio, with different spacings (50 and 100 mm), the distance of the fastening around the reinforcement by the pressed steel induction plate, test results that will be presented, torque failure in reinforced concrete beams and torsional angles, maximum failure and failure form, cracksand behavior, and behavior analysis of reinforced concrete beams.