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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: Proposed Changes in Shear Provisions
for Reinforced and Prestressed
Author(s): James G. MacGregor and John M. Hanson
Publication: Journal Proceedings
Appears on pages(s): 276-288
Keywords: axial loads; beams (supports) ; diagonaI tension; prestressed concrete; reinforced concrete;shear strength; structural analysis; structural design; web reinforcement.
Abstract:Major additions and changes in the design provisions for shear and diagonal tension, proposed for incorporation in the revised (1970) ACI Building Code, are presented. To serve as background, the basic assumptions of the shear design provisions of the ACI Building Code (ACI 318-63) are reviewed. The proposals include a minimum web reinforcement provision, a revised design procedure for reinforced concrete beams under axial tension and axial compression, and a simplified alternate design procedure for prestressed concrete beams. Several design illustrations which use this alternate procedure for prestressed concrete beams are included.
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