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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 Members Subject to Combined Biaxial Bending and Tension
Author(s): Cheng-Tzu Thomas Hsu
Publication: Journal Proceedings
Appears on pages(s): 137-144
Keywords: axial loads; bending moments; biaxial loads; computer programs; reinforced concrete; structural analysis; tension.
Abstract:The research reported studies the ultimate strength behavior of reinforced concrete members subjected to biaxial bending and axial tension. A computer program was developed to study the three-dimensional strength-interaction diagrams and failure surfaces for members under these combined actions. The computed results were compared with other existing analytical results and experimental test results for reinforced concrete members subject to combined uniaxial bending moment and axial tension. Such variables as maximum concrete compressive strength, steel yield strength, and size of cross section were also studied. Based on the computer results and resulting failure surfaces, two design formulas for reinforced concrete members under combined biaxial bending and axial tension are proposed for square and rectangular sections, respectively. These two equations represent two nondimensional design formulas which are a further improvement of the load-contour methods and can be useful for practical design work.
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