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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 Steel Strength and of
Reinforcement Ratio on the Mode
of Failure and Strain Energy
Capacity of Reinforced Concrete Beams
Author(s): ACI Committee 439
Publication: Journal Proceedings
Appears on pages(s): 165-173
Keywords: beams (supports) ; blast resistant construction; ductility; dynamic loads;
earthquakes; flexural strength; high strength steel; loads (forces) ; reinforced concrete;reinforcing steel; research; stress-strain relationships.
Abstract:A theoretical study based on idealized stress-strain curves indicates that, within the ductile range of reinforcement ratios, the strain energy capacity is about the same in reinforced concrete beams of equal static bending strength regardless of the yield stress of the reinforcing steel. This suggests that, for a given static load capacity, a beam reinforced with bars having 60,000 psi (42 I8 kg/cm) or 75,000 psi (5273 kg/cm’) yield stress would very likely be almost as satisfactory as a beam reinforced with bars having 40,000 psi (28 I2 kg/cm’) yield stress for resisting blasts, earthquakes, or other dynamic loadings.
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