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Ultimate strength of curved RC box girder bridge
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.ORCID iD: 0000-0002-0560-9355
1977 (English)In: Journal of the Structural division (1956-1982), ISSN 0044-8001, Vol. 103, no 8, paper 13113, p. 1525-1542Article in journal (Refereed) Published
Abstract [en]

Results obtained in a study of a large-scale curved two-span four-cell reinforced concrete box girder bridge model are presented. The model, which was a 1:2. 82 scale replica of a prototype, had overall plan dimensions of 72 ft (21 m) long by 12 ft (3. 7 m) wide. The radius of curvature was 100 ft (30. 5 m). This represents the sharpest curvature normally used for bridges in the California highway system. Experimental and theoretical results are considered for reactions, steel and concrete strains, deflections, and moments due to conditioning overloads producing stress values as high as 2. 5 times the nominal design stress. The loading to failure and the ultimate strength behavior is examined. The excellent live-load overload capacity of the bridge is evaluated and comparisons are made with the similar behavior of an earlier tested straight bridge model. Conclusions appropriate for the design of this type of bridge are given.

Place, publisher, year, edition, pages
1977. Vol. 103, no 8, paper 13113, p. 1525-1542
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-2622Local ID: 04371bf0-701b-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-2622DiVA, id: diva2:975475
Note
Godkänd; 1977; 20061109 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Elfgren, Lennart

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