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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: Discontinuity of the Strength in Bending and Shear of
Author(s): Milik Tichy
Publication: Journal Proceedings
Appears on pages(s): 249-252
Keywords: beams (supports) ; bending; cracking (fracturing) ; flexural strength; reinforced concrete; shear properties; shear strength; stirrups; ultimate strength.
Abstract:Papers analyzing the ultimate strength of beams subject to bending and shear treat the shear reinforcement as a continuous entity. However, the shear reinforcement is discrete which has an influence on the ultimate behavior of the beam. Assuming a model of the shear-bending strength, it can be shown that the inclination of the shear crack and also the spacing of shear reinforcement are important factors. The inclination of shear crack is a random variable which is only partially dependent on conditions at ultimate load. The analysis of a set of "computer beams" has shown interesting discontinuities of the ratio Mus/Mu (where Mus is the ultimate moment at shear-bending failure and Mu is the ultimate moment at pure bending) when plotted towards the shear span ratio M/Vd1.
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