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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: Time-Dependent Behavior of
Concrete Box Girder Bridges
Author(s): Alex C. Scordelis, Lennart G. Elfgren, and Per K. Larsen
Publication: Journal Proceedings
Appears on pages(s): 159-178
Keywords: box beams; continuous beams; creep properties; cyclic loads; girder bridges; models;reinforced concrete; strains; static loads.
Abstract:Time-dependent deflections and strain histories under sustained dead load, after successively increasing overload conditions, are presented for two 1:2.82 scale reinforced concrete models of a typical two-lane prototype bridge in California having two 101.5 ft (30.9 m) spans with a single column bent at the center. The two models had the same four cell cross section but one was straight in plan, while the other was curved. The experimental data for the two bridge models are presented and compared with each other as well as with theoretical predictions. Time-dependent responses of the two bridges were quite similar. Maximum dead load deflection after 4 months and the application and removal of heavy overloads was about 4 times the initial deflection.
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