Analytical Study on the Effect of Different Shear Reinforcement Shapes on Shear Failure Behavior and Shear Resistance Mechanism of RC Beams

The authors have reported from experimental investigation that the use of closed stirrups, U-shaped stirrups and rod-shaped reinforcements as shear in reinforced concrete (RC) beams results clear differences internal crack patterns maximum strength. In this study, simulations were performed using a three-dimensional rigid-body spring model, demonstrating behavior observed experiments is mechanical phenomenon can be reproduced numerically. Using stress distribution over beam cross section obtained analysis, arch action components resistance are decoupled considered perspective mechanism. Further, through analysis additional cases, role upper lower horizontal legs reinforcement, effect end anchorages on clarified.