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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: Ultimate Strength With High Strength Reinforcing Steel With an Indefinite Yield Point
Author(s): Nripendra C. Sinha and Phil M. Ferguson
Publication: Journal Proceedings
Appears on pages(s): 399-418
Abstract:Ultimate strength analysis for concrete members reinforced with high strength steel having an indefinite yield point has been used on Bernoulli’s hypothesis, the absence of slip between concrete and steel, and on assumed ultimate concrete strain cc u . Interaction diagrams for eccentrically loaded columns have been plotted based on one such high strength steel. The moment capacities of eccentrically loaded symmetrical columns reinforced with total steel providing p = p’ of 2.5 or 4.0 percent were found to increase gradually with increasing eccentricity to an absolute maximum value of moment for e = m. Detail strain measurements showed that short-time load capacity was not reached until the compressive strain reached 0.0050 to 0.0060 and the rotation angle of a l-in. element reached a minimum of 3600 x 10 6 radians for beams 6-in. deep or 840 x 10 6 radian for a column 9 in. deep (eccentricity = 10.62 in.).
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