Behavior of Concrete Beams in Torsion and Bending

by B. Vijaya Rangan, (M.ASCE), Sr. Lect.; School of Civ. Engrg., Univ. of New South Wales, Kensington, NSW, Australia,
A. Stanley Hall, Prof. and Head; School of Civ. Engrg., Univ. of New South Wales, Kensington, NSW, Australia,
Russell F. Staley, Teaching Fellow; School of Civ. Engrg., Univ. of New South Wales, Kensington, NSW, Australia,


Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 4, Pg. 759-772


Document Type: Journal Paper

Abstract: Using the familiar skew-bending model, a general theory is developed for reinforced concrete beams in combined torsion and bending. The theory is applied to predict the complete behavior of beams up to failure, the strengths of overreinforced and underreinforced beams, and balanced steel ratios. Agreement between the theory and available test data is remarkably good. The paper also includes a simplified method for the calculation of strength of partially or fully overreinforced beams.

Subject Headings: Concrete beams | Reinforced concrete | Torsion | Bending (structural) | Structural strength | Steel beams | Skewness

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