Title:
Punching Shear Tests of Concrete Slab-Column Joints Containing Fiber Reinforcement
Author(s):
S. D. B. ALlexander and S. H. Simmonds
Publication:
Structural Journal
Volume:
89
Issue:
4
Appears on pages(s):
425-432
Keywords:
columns (supports); ductility; fiber reinforced concretes; joints (junctions); punching shear; reinforced concrete; slabs; tests; Structural Research
DOI:
10.14359/3027
Date:
7/1/1992
Abstract:
Six specimens simulating isolated slab-column connections were loaded to failure to determine the effect on the shear capacity of reinforced concrete slab-column connections from adding corrugated steel fibers to the concrete. The primary variables were the concrete cover and the density of fiber reinforcement. The addition of fibers increased the shear capacity from 20 to 30 percent, increased the initial stiffness, and greatly increased the ductility of the connection at failure. The means by which the fibers enhance the shear capacity are described. It is concluded that, in many instances, adding corrugated steel fibers offers a viable alternative to increasing the shear capacity of slabs. 273-592