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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: Moment and Shear Redistribution
in Two-Span Continuous Reinforced Concrete Beams*
Author(s): George C. Ernst
Publication: Journal Proceedings
Appears on pages(s): 573-589
Keywords: no keywords
Abstract:Twenty-Four Two-Span Continuous Beams were tested to determine the manner and degree of moment and shear redistribution after yielding of the first critical section. Support displacement conditions were selected to provide severe redistribution requirements. Manner and degree of moment and shear redistribution were essentially the same for all beams, with redistribution beginning with the start of steel yield at the first critical section and becoming practically complete upon initial yielding of the final critical section. Transverse ties designed to resist all the shear at plastic collapse provided adequate protection against diagonal tension failure with one exception. Concentrated plastic rotation values indicate a sufficient capacity for the attainment of crushing moments at all critical sections for the steel ratios and support displacements of these tests. The amount available for redistribution may become limited by high steel ratios.
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