Title:
Cost Comparison of Bar Splices -- Mechanical Butt Versus Lap
Author(s):
James R. Cagley and Richard Apple
Publication:
Concrete International
Volume:
20
Issue:
7
Appears on pages(s):
55-56
Keywords:
bar splicing; costs; load transfer; reinforcing steels; seismic design
DOI:
Date:
7/1/1998
Abstract:
Since the beginning of reinforced concrete use, lap splices have been the accepted method of joining bars. But research has started questioning the lap splice principle, particularly in light of ever increasing high-rise construction. Two different structures in the design stage, a 12-story parking garage and a 3-story chemical laboratories, were studied and the cost for upgrade to mechanical butt splices analyzed. The results showed that the expense associated with this type of upgrading was less than 0.2 percent of the total cost.