The important one is punching shear failure at the slab columnconnection that is caused by shear transferring and the supporting column moments. In nature, punching shear failure is brittle and maybe leads to building progressive collapse. In general, two types of punching can be distinguished:symmetrical punching and non-symmetrical.
(PDF) Punching Shear Behavior of Fiber Reinforced Polymers This paper presents the results of a two-phase experimental program investigating the punching shear behavior of fiber reinforced polymer reinforced concrete (FRP RC) flat slabs with and without
Nov 07, 2016 · Cracking pattern and load-deflection behavior of the slabs tested have also been monitored closely. Significant effect of edge restraint on the punching failure load, resulting in an enhancing of the ultimate punching strength, and effect of flexural reinforcement on the punching failure load have been noticed.
Experimental Investigations on Punching Behavior of The experimental results indicate that the angle of the failure shear crack is steeper than observed by punching tests of flat slabs. Furthermore, the shear slenderness
Numerical Investigation of Punching Shear Pattern of Flat The results show that the punching shear strength increased gradually by increasing the clear distance between columns. The presence of opening led to a decrease in punching shear capacity by about 32%. II. RESEARCH SIGNIFICANCE The literature on the subject of punching shear behavior of flat slabs rested on coupled columns is thus
Based on these experiments, no conclusions regarding the effectiveness and load-bearing behavior of steel fiber reinforced flat slabs in combination with punching shear reinforcement can be drawn. For the systematic investigation of the punching shear capacity of steel fiber reinforced flat slabs with closed stirrups and shear studs as punching shear reinforcement, two series with three tests each were
STRUCTURE magazine Punching of SlabsPunching shear behavior is a topic that has attracted much attention from engineers in the last decades because of several collapses caused by punching shear failures. Introducing transverse reinforcement is the most common solution when the geometry of the slab-column connection has to be maintained and punching shear resistance has to be Experimental Investigations on Punching Behavior of The punching shear behavior of reinforced concrete footings without shear reinforcement and with high amounts of shear reinforcement has been investigated by various researchers in the past.