Authors
Abstract
This work examines the work of 13 high-strength concrete (HSC) beamcolumn
joints (BCJ)-with and without steel fibers. Several shear design methods
(with modification for fiber content, where applicable) were found to be
conservative within a range of the following variables: 1) concrete compressive
strength, 2) type and volume fraction of steel fibers, 3) content of hoops in the
joint, and 4) column axial load. The coefficient of variation (COV) of the ratio
of test strength to design strength (VTEST / VrDES) was found to be appreciably low
for two of the five existing safe design methods. A conservative design method,
which lowers the COV even further to a value of 7.8 percent, is proposed for HSC
joints, with and without steel fiber reinforcement
Keywords
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