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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: Strength and Ductility of a Three-Span Externally Post-Tensioned Segmental Box Girder Bridge Model
Author(s): Robert J. F. Macgregor, Michael E. Kreger, and John E. Breen
Publication: Special Publication
Appears on pages(s): 315-338
Keywords: box beams; bridges (structures); ductility; models; tests; post-tensioning; prestressing steels; segmental construction; strength; precast concrete; structural design; unbonded prestressing; Design
Abstract:An experimental investigation was conducted to examine the service and ultimate load behavior of segmentally precast box girder bridges with external post-tensioning tendons. A primary interest of this study was to examine the effect of joint type (dry versus epoxied joints) on the stiffness, strength, and ductility of the structure. A three-span reduced scale segmental box girder model was constructed, then tested in three stages. Flexural behavior was examined first, then shear tests were conducted on the damaged structure. Test results and observations are presented.
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