The Earthquake Engineering Online Archive

Lap splice strength of plain and epoxy-coated reinforcements: an experimental study considering concrete strength, casting position, and anti-bleeding additives

DeVries, Richard A.; Moehle, Jack P.; Hester, Weston T.

UCB/SEMM-1991/02, Dept. of Civil Engineering, University of California, Berkeley, 1991-01, 86 pages (500/C23/91/02)

Thirty-six beams were tested to determine the effects of several variables on the strength of lap splices. The variables included casting position, concrete strength, epoxy coating of reinforcing steel, and the presence of an anti-bleeding agent. The splice region of the beam was subjected to a constant moment. Load-deflection, load-strain, and bond behavior were measured. The measured bond strengths of the beams were compared with current design and empirical equations for bond strength. Effects of each variable were gaged, modification factors were calculated, and a design approach was suggested.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-91-02.pdf (5 MB)