Spacing of Spliced Bars in Beams


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Spacing of Spliced Bars in Beams

Author(s): S. J. Chamberlin

Publication: Journal Proceedings

Volume: 54

Issue: 2

Appears on pages(s): 689-697

Keywords: no keywords

Date: 2/1/1958

Beams, 6 x 6 in. in cross section with a 32-in. span, contained a single, spliced #4 bar, or two #4 bars, spliced in the region of constant moment. Lengths of lap were 3, 6, and 12 in. and clear spacings hetwecn the lapped bars were 0, 1/2 and 1 in. Lapped lengths of 12 in. devclopcd yield point st,ross in both the single and double bars. Single-bar beams failed by splitting of the bottom cover. Side splitting occurred in all of the double-bar beams. High bond stresses mere developed. Load-deflection curves and ultimate loads showed little difference in strength between adjacent and spaced splices.