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Home > Publications > International Concrete Abstracts Portal
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.
Title: Diagonal Tension in Reinforced Concrete Beams
Author(s): Arthur P. Clark
Publication: Journal Proceedings
Appears on pages(s): 145-156
Keywords: no keywords
Abstract:Resistance of reinforced concrete beams to diagonal tension was investigated in a series of tests which included beams with no web reinforcement and beams with varying ratios of web reinforcement consisting of s-in. round deformed bars. Strains in the web and tensile reinforcement were measured with resistance strain gages; deflections of the beams under load were also measured and the number and extent of cracks were observed. Beams of two cross sections, four span lengths and concrete strengths rang-ing from 2000 to 6000 psi were tested for five different positions of concen-trated loads. One of the results of these tests, not previously demonstrated, is that the position of the loads on a beam influences considerably its shear carrying capacity. An empirical formula based on the data obtained in this study indicates that the shear resistance of the beams varies as the square root of the percentage of web reinforcement and linearly as the compressive strength of the concrete multiplied by a factor representing the ratio of effec-tive depth of beam to distance from plane of the nearest concentrated load point to plane of the support.
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