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dc.contributor.advisorWilliamson, Eric B., 1968-en
dc.contributor.advisorYura, J. A.en
dc.creatorTopkaya, Cemen
dc.date.accessioned2008-08-28T21:42:20Zen
dc.date.available2008-08-28T21:42:20Zen
dc.date.issued2002en
dc.identifierb57262068en
dc.identifier.urihttp://hdl.handle.net/2152/998en
dc.descriptiontexten
dc.description.abstractDue to advances in fabrication technology, the use of steel trapezoidal box girders for curved interchange structures has become popular. The rapid erection, long span capability, economics, and aesthetics of these girders make them more favorable than other structural systems. Composite box girders with live loading, and quasi-closed box girders during construction, have to be evaluated during the design of these bridges. Considering both cases, the design for construction loading is the least understood and is the most important. Stresses due to construction loading can reach up to 60-70 percent of the total design stress for a given cross section. A three-phase study has been undertaken to investigate the behavior of curved trapezoidal box girders during construction. In the first phase, laboratory tests have been performed to investigate the shear transfer between the concrete deck and steel girder at early concrete ages. In the second phase, an easy-to-use finite element program has been developed for the analysis of these systems under construction loads. The program has the capability of modeling the effects of semi-cured concrete. The third phase focused on the monitoring of two curved trapezoidal box bridges during construction. The measured forces and stresses in the field were compared with the analyses using the developed software. Findings from laboratory and field tests revealed that composite action develops at very early concrete ages. The developed software provides good correlation between measured field data and computed results.
dc.format.mediumelectronicen
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subject.lcshBox beamsen
dc.subject.lcshGirdersen
dc.subject.lcshBridges--Design and constructionen
dc.subject.lcshSteel, Structuralen
dc.titleBehavior of curved steel trapezoidal box girders during constructionen
dc.description.departmentCivil, Architectural, and Environmental Engineeringen
dc.identifier.oclc57070250en
dc.identifier.proqst3108523en
dc.type.genreThesisen
thesis.degree.departmentCivil, Architectural, and Environmental Engineeringen
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen


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