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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 and distribution of 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: Shear Strength of Prestressed and Nonprestressed Concrete Beams
Author(s): Yi-An Li, Thomas T.C. Hsu, and Shyh-Jiann Hwang
Publication: Concrete International
Appears on pages(s): 53-57
Keywords: failure, web, flexural, design
Abstract:ACI 318-14 requirements for determining the shear strength of concrete beams are separated into two distinctly different methods—one for prestressed concrete (PC) and one for nonprestressed reinforced concrete (RC). To simplify the shear strength calculations, a shear prediction equation incorporating a factor known as the “arch action factor” is proposed. This factor provides a means to unify flexural shear failure and web shear failure, and it has been shown to be applicable to both PC and RC.
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