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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: Stress Distribution in Reinforced Concrete
Sections Subjected to Biaxial Loading
Author(s): L. Lachance
Publication: Journal Proceedings
Appears on pages(s): 116-122
Keywords: axial loads; bending moments; biaxial loads: compression; linear
programming; reinforced concrete; strength; stress analysis; stress-strain dia-gram;structural analysis; theories.
Abstract:A theory is developed for the nonlinear or linear analysis of arbitrary reinforced sections subjected to biaxial loading. The accuracy of the theory is verified by comparison with known uniaxial non-linear analyses of reinforced concrete sections of symmetrical square and L shapes, and with classical linear theory based on principal moments of inertia for unsymmetrical sections. Three basic shapes of concrete stress-strain diagrams are considered for three allowable compressive strains, which give nine different types of concrete stress distribution for use in analyzing various reinforced concrete sections. A comparative study of the results indicates that the factor which most influences ultimate biaxial bending strength and curvature is the allowable concrete compressive strain. The shape of concrete stress distribution has little effect on the section behavior.
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