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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.


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