Punching shear failure in thin slabs under concentrated loads can cause stresses near columns. The use of steel fiber is a practical way to improve slab-column connection's punching strength and deformation capacity. In this study, the capacity behavior fiber-reinforced concrete flat are examined force. Ten small-scale were tested, eight which had two without. Two parameters studied paper, volu...

This article investigates the punching shear behavior of recycled aggregate concrete (RAC) two-way slabs. Ten 1500 mm × 100 slabs were tested monotonically. Eight cast with RAC, whereas two control natural (NAC). The RAC incorporated coarse (RCA) at replacement levels 25%, 50%, 75% and 100%. Two flexural reinforcement ratios (0.8% 1.5%) examined. results show that normalized strength 100% decre...