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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: Strains in Beams Having Diagonal Cracks
Author(s): D. Watstein and R. G. Mathey
Publication: Journal Proceedings
Appears on pages(s): 717-728
Keywords: no keywords
Abstract:Several Reinforced Concrete Beams were tested to determine the validity of the usual assumptions that longitudinal reinforcement does not transfer vertical shear across a diagonal tension crack and that the maximum compressive strain within the shear span is developed at the extreme fiber. Extensive strain measurements in the steel and the concrete indicated that a plane section did not remain plane following development of a diagonal crack and that the maximum compressive strains in the concrete occurred some distance below the extreme fiber. The longitudinal reinforcement was found to carry considerable vertical shear across a crack, but this force decreased rapidly as the load approached the maximum.
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