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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: Reinforced Concrete Beams with Small Opening in Bending and Torsion
Author(s): M.A. Mansur and P. Paramasivam
Publication: Journal Proceedings
Appears on pages(s): 180-185
Keywords: beams (supports); bending; compression; failure; openings; rectangular beams; reinforced concrete; strength; structural analysis; tests; torsion.
Abstract:A method of analysis is presented for predicting the strength of reinforced concrete beams that are subjected to combined bending and torsion and contain a smalI transverse opening. The analysis is based on the famihar skew-bending model. Strength equations are derived for failure Modes 1, 2, and 3 by assuming a suitable pattern reinforcement around the opening. Test results of 10 beams containing a circular opening are also presented and discussed. The theoretical predictions are in good agreement with the test results.
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