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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: Lateral Instablity of Reinforced Concrete Beams Under Uniform Bending Moments
Author(s): Campbell Massey
Publication: Journal Proceedings
Appears on pages(s): 164-172
Keywords: beams (structural); buckling; flexural strength; lateral loads; moments; reinforced concrete; reinforcement; research; ridgidity; structural analysis; torsion; warpage.
Abstract:The lateral stability conditions for a single span slender reinforced concrete beam under uniform bending moment are examined. A method for predicting the critical bending moment is suggested, based on the lateral bending and tor-sional rigidities and, in the case of doubly reinforced beams, on the warping rigidity. It is shown that these rigidities depend not only on the overall dimensions of the cross section but also on the percentage of steel, the number, type and size of stirrups, and the state of stress. Experimental results are described which support the proposed theory. These results are then compared with standard design recommenda-tions.
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