Welded Structural Wire Reinforcement for Columns


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Title: Welded Structural Wire Reinforcement for Columns

Author(s): Richard W. Furlong, Gregory L. Fenves, and Eldon P. Kasl

Publication: Structural Journal

Volume: 88

Issue: 5

Appears on pages(s): 585-591

Keywords: columns (supports); reinforcing steels; stiffness; strength; tests; tied columns; welded wire fabric.

Date: 9/1/1991

The use of welded structural wire reinforcement as the only reinforcement for concrete columns was demonstrated in a pilot study for which four sets of twin specimens were cast simultaneously and tested under identical conditions. One specimen of each pair was reinforced with conventional reinforcing bars, and its twin was reinforced with the same longitudinal area of welded structural wire reinforcement. Transverse ties in each pair had the same strength per unit of column length. Stiffness response was virtually identical for twin specimens. All conventionally reinforced specimens and three of the welded structural wire reinforced columns resisted test loads larger than the capacity Pn determined in accordance with the AC1 Building Code (ACI 318-89). The fourth specimen failed at a load equal to 97 percent of it s Building Code-predicted capacity Pn.