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dc.contributor.advisorHueste, Mary Beth D.en_US
dc.creatorCuadros Olave, Gladysen_US
dc.date.accessioned2004-09-30T01:46:11Z
dc.date.available2004-09-30T01:46:11Z
dc.date.created2003-05en_US
dc.date.issued2004-09-30
dc.identifier.urihttp://hdl.handle.net/1969.1/208
dc.description.abstractThis research study focuses on evaluating the design of HSC prestressed bridge girders. Specifically there were three major objectives. First, to determine the current state of practice for the design of HSC prestressed bridge girders. Second, to evaluate the controlling limit states for the design of HSC prestressed bridge girders and identify areas where some economy in design may be gained. Third, to conduct a preliminary assessment of the impact of raising critical design criteria with an objective of increasing the economy and potential span length of HSC prestressed girders. The first objective was accomplished through a literature search and survey. The literature search included review of design criteria for both the AASHTO Standard and LRFD Specifications. Review of relevant case studies of the performance of HSC prestressed bridge girders, as well all as of important design parameters for HSC were carried out. In addition, a survey was conducted to gather information and document critical aspect of current design practices for HSC prestressed bridges The second objective was accomplished by conducting a parametric study for single span HSC prestressed bridge girders to mainly investigate the controlling limit states for both the AASHTO Standard (2002) and LRFD (2002) Specifications. AASHTO Type IV and Texas U54 girder sections were considered. The effects of changes in concrete strength, strand diameter, girder spacing and span length were evaluated. Based on the results from the parametric study, the limiting design criteria for HSC prestressed U54 and Type IV girders using both the AASHTO Standard and LRFD Specifications for Highway Bridges were evaluated. Critical areas where some economy in design may be gained were identified. The third research objective was accomplished by evaluating the impact of raising the allowable tensile stress for service conditions. This stress limit was selected for further study based on the current limit for uncracked sections provided by the ACI 318 code (2002) and the limit used for a specific case study bridge (Ralls 1995). Recommendations for improving some critical areas of current bridge designs, as well as for increasing bridge span lengths, are given.en_US
dc.format.extent2985853 bytes
dc.format.extent571048 bytes
dc.format.mediumelectronicen_US
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_USen_US
dc.publisherTexas A&M Universityen_US
dc.subjectHigh Strengthen_US
dc.subjectConcreteen_US
dc.subjectPrestresseden_US
dc.subjectBridgeen_US
dc.subjectGirderen_US
dc.subjectDesignen_US
dc.titleEvaluation of high strength concrete prestressed bridge girder designen_US
dc.typeBooken
dc.typeThesisen
thesis.degree.departmentCivil Engineeringen_US
thesis.degree.disciplineCivil Engineeringen_US
thesis.degree.grantorTexas A&M Universityen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelMastersen_US
dc.contributor.committeeMemberRoesset, Jose M.en_US
dc.contributor.committeeMemberCline, Daren B.H.en_US
dc.type.genreElectronic Thesisen_US
dc.type.materialtexten_US
dc.format.digitalOriginborn digitalen_US


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