الفهرس 
Concrete Punching Shear Phenomena
EXPERIMENTAL RESULTS AND DISCUSSIONOnly 14 pages are availabe for public view
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Abstract
High strength concrete and shear reinforcement can be used to increase the strength of concrete flat plates in punching. And this could help in reducing the slab thickness, weight and cost of structure. If high strength concrete is self-compacting, the production would be more industrialized. However, to be effective, the shear reinforcement must be well anchored in the compression and tension zones of the slab.
This research investigates, experimentally, the behaviour of corner slab-column connections made of high strength self-compacting concrete and provided with shear reinforcement. The experimental program included testing of six flat slab specimens having dimensions 1100*1100 mm with 160 mm thickness. The investigated variables are the concrete compressive strength, the shear reinforcement, and the aspect ratio of supporting column. The concrete compressive strength varied from 30MPa to 80MPa, while the aspect ratio of supporting column ranged from 1 to 3. The tested six specimens were loaded at corner column with a single concentrated load until failure.
The general deformational behavior of the tested specimens was examined and recorded (cracking, deflection, and strain in steel). To evaluate the results of the tested specimens, different international codes have been used to calculate the punching strength of test slabs.
The test results showed that using of High Strength Self-Compacting Concrete improved the performance of slab behavior and increased the shear punching capacity; also showed that the presence of shear reinforcement improved punching shear but without remarkable percentage, while changing the column aspect ratio had remarkable effect on the punching shear capacity.