Title:
Tests to Determine Performance of Deformed Welded Wire Fabric Stirrups
Author(s):
Andrew Griezic, William D. Cook, and Denis Mitchell
Publication:
Structural Journal
Volume:
91
Issue:
2
Appears on pages(s):
211-220
Keywords:
cracking (fracturing); ductility; reinforced concrete; shear strength; stirrups; welded wire fabric; Structural Research
DOI:
10.14359/4597
Date:
3/1/1994
Abstract:
Two full-scale beams with cold-rolled Grade 500 (Grade 75, ksi) deformed welded wire fabric U-stirrups were used to assess the service and ultimate load performance of the welded wire fabric as shear reinforcement. By comparing the responses of these beams with two companion beams, reinforced with hot-rolled Grade 400 (Grade 60, ksi) stirrups, it was demonstrated that the use of welded wire fabric resulted in better diagonal crack control and enabled large strains to be developed in the stirrups. These uses demonstrated that the full yield stress of Grade 500 reinforcement can be developed in the stirrups. The predicted shear capacities of these beams, compared using the 1989 ACI Building Code expression, underestimated the actual strengths. The modified compression field theory provided a more accurate prediction of their capacities.