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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: Segmental Box Grider Bridge
Author(s): James R. Libby
Publication: Journal Proceedings
Appears on pages(s): 279-290
Keywords: anchorage (structural); bending moments;bridge decks; bridges (structures); cantilever beams;construction; construction costs;creep properties;long span; post-tensioning; precast concrete;reinforced concrete; reinforcing steels;span-depth ratio.
Abstract:The considerations that must be taken into account by the designer of a segmental bridge superstructure are discussed. It is shown that the fundamental principles involved in such designs are not unique to this form of construction. Flexure in the webs induced by prestressing, dead, and live loads as well as the redistribution of longitudinal bending moments resulting from concrete creep are imporrtant design considerations. Temperature-induced stresses are discussed briefly as are construction methods.
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