"EXPERIMENTAL STUDY ON THE BENDING BEHAVIORS OF SRHSHPC BEAMS "

Based on the bending experiment of 10 steel reinforced high-strength and high-performance concrete (SRHSHPC) specimens of simply supported beams, the failure process, crack development mode and failure mode are observed, and the typical load-deflection curves of SRHSHPC beam as well as strain distribution of concrete and steel along the section height are obtained, then the failure mechanism of SRHSHPC beams in general bending failure and splitting failure modes are analyzed. The main factors affecting the bending behaviors of SRHSHPC beam are revealed and relationships between concrete strength, steel ratio, flange width ratio (the ratio of steel flange width to beam width) and shear connection modes are obtained. The research achievements will provide experimental data and a theoretical support for establishing the correlative calculation theory of SRHSHPC beams.