Experimental Evaluation of Effect of Flange Dimensions on Shear Behavior of NSC and SCC Double Tee Beams


This study deals with, experimentally, the effect of flange dimensions on shearbehavior of normal strength concrete (NSC) and self-compacting concrete (SCC)double Tee beams.Twelve beam specimens as well as a series of control specimens are tested. Thebeam specimens were divided into two groups (based on concrete type) and eachgroup are divided into five subgroups (based on flange dimensions).The websdimensions, beam depth, beam length, spacing between webs, longitudinal(tension) reinforcement and transverse reinforcement (stirrups) were kept constantin all beam specimens.Experimental results showed that the ultimate capacity increased about (6%-12) and (9%-20) when the flange width (dimensions) increased from (320mm) to(450mm) for NSC and SCC respectively. Presence of large compression flangelead to increase the stiffness of tested beams due to contribution of additionalconcrete parts, and this leads to increase in carrying capacity.