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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: Design of Prestressed Concrete Beams Subjected to Torsion
Author(s): H. Roger Woodhead and Arthur E. McMullen
Publication: Journal Proceedings
Appears on pages(s): 745-748
Keywords: beams (supports); bending; loads (forces); prestressed concrete; shear stress; structural analysis; structural design; torsion
Abstract:A procedure for designing prestressed concrete beams sujected to torsion, bending and shear is proposed. This procedure uses the current ACI recommendations for reinforced concrete as a basis. The results of tests on four beams that were designed using the proposed method show that the method is satisfactorily conservative and correctly predicts the type of failure. The results of these four tests were also compared to the results predicted by the truss theory and it was found that the truss theory is more conservative and does not adequately predict a compression failure. Finally, the experimental strengths of 379 prestressed beams reported in the literature are compared with the ultimate strengths predicted by the proposed design procedure. The design method was found to be conservative, particularly for I- and T-sections.
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