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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: Ultimate Load Capacity of Reinforced Concrete
Beam-and-Slab Highway Bridges
Author(s): R. Nagaraja and S. D. Lash
Publication: Journal Proceedings
Appears on pages(s): 1003-1009
Keywords: beams (supports) ; bridges (structures); concrete slabs; deflection; failure mechanisms;hinges (structural) ; models; reinforced concrete; shear properties; strains; structural design; torsion; ultimate strength method.
Abstract:A procedure for estimating the ultimate load capacity of reinforced concrete beam-and-slab highway bridges of moderate span is described. This procedure takes into account the resistance provided by bending hinges, torsional hinges, and slab yield lines. Mechanisms of failure are proposed, and ultimate load tests of 1/10 and 1/4 scale models demonstrated that these mechanisms are in fact developed if secondary failures, particularly those caused by the interaction of shear and torsion, are prevented. The ultimate load capacity of a beam-and-slab bridge may be predicted with reasonable accuracy using assumed mechanisms of failure and ultimate strength design methods.
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