Title:
Experimental Investigation on the Behavior of High-Strength Concrete Slabs
Author(s):
H. Marzouk and A. Hussein
Publication:
Structural Journal
Volume:
88
Issue:
6
Appears on pages(s):
701-713
Keywords:
connections; cracking (fracturing); deflection; ductility; flat concrete plates; flat concrete slabs; high-strength concretes; punching shear; reinforced concrete; shear strength; strains; Structural Research
DOI:
10.14359/1261
Date:
11/1/1992
Abstract:
Seventeen reinforced concrete slabs were tested to investigate the deformation and strength characteristics of punching shear failure of high-strength concrete slabs. The tested specimens had different slab depths and reinforcing ratios varying between 0.49 and 2.33 percent. Test results revealed that high-strength concrete slabs exhibit a more brittle failure than normal strength concrete. Experimental results indicated that as the level of reinforcement is increased, the punching strength of the slabs is also increased. It was found that using the cubic root of the concrete compressive strength to predict the punching resistance of the concrete slabs generally yields better results than the square root expression used in North American codes.