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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: Shear Strength of Large Reinforced Concrete Beams
Author(s): T. Shioya, M. Iguro, Y. Nojiri, H. Akiyama, and T. Okada
Publication: Special Publication
Appears on pages(s): 259-280
Keywords: beams (supports); dimensional analysis; finite element method; flexural strength; reinforced concrete; shear strength; structural analysis; tensile strength; tests; Structural Research
Abstract:Experimental and theoretical studies on shear strength of large reinforced concrete beams are presented. The shear strength of a reinforced concrete beam without shear reinforcement gradually decreases as an effective depth d of a beam increases, and is generally called the size effect. From the result of the experiment on large beams, the size effect of a beam exists even for a beam deeper than 100 cm which had been outside of the scope of past experiments, and the size effect at d ò 100 cm may be considered to be inversely proportional to the fourth root of the effective depth. According to the result of a nonlinear finite element analysis, the size effect on flexural tensile strength of concrete and shear transfer across crack surfaces must be considered in estimating the shear strength of a large reinforced concrete beam.
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