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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: Effect of Tensile Properties of Reinforcement on the Flexural Characteristics of Beams
Author(s): Robert G. Mathey and David Watstein
Publication: Journal Proceedings
Appears on pages(s): 1253-1274
Abstract:The effect of maanitude of steel stresses and the nature of the stress-strain characteristics on the center deflection. strain in the concrete, widths and spacing of cracks in the region of constant bending moment, load carrying capacity, and the manner of failure were investigated in a series of flexural beam tests. This series consisted of 12 rectangular concrete beams reinforced with six different types of steel bars with yield strengths ranging from 49,500 to 104, 300 psi. The ratio of reinforcement was proportioned inversely to the yield strength, thus providing equal resistance to vi eldina under tensile forces. Failure occurred in all the beams at approximatelv the same load. Test results were compared with values computed with the straight line and ultimate test strength. The relationship between the computed steel stresses and the center deflections, width and spacing of cracks, and strain in the steel and concrete was deter-mined for the six types of steel bars.
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