Torsion behavior of self-compacting reinforced concrete beamsproduced from recycled aggregate: a numerical investigation

الملخص

            In the study of reinforcement beams, the behavior of reinforcing beams under torsion is challenging. The use of numerical approaches has been extensive for this purpose, particularly in relation to experimental research, which is usually associated with costs as well as very significant difficulties        This study aims to investigate the torsional moment behavior of the properties of concrete beams, where beams are tested by subjection to torsional moments that come from the eccentricity of the applied load.

          the experimental 12 self-compacted reinforcement beams models adopted for analysis in this study are tested,  all beams are geometrically similar, have a rectangular cross-section with dimensions of (200x250) mm2 with 1000 mm length, within parameters considered include the RCA content, ( 0,25,50 and 75 % ), The amount of longitudinal reinforcement and The number of stirrups.

         For each beam, cracking and ultimate torque were recorded together with the angle of twist until failure was reached for each torsional increment between the two points. Additionally, the crack patterns and mechanisms of failure of each and every beam that was evaluated during the testing process.