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dc.contributor.authorScott, Janaen_US
dc.date.accessioned2014-03-14T20:41:11Z
dc.date.available2014-03-14T20:41:11Z
dc.date.issued2010-06-18en_US
dc.identifier.otheretd-07072010-112155en_US
dc.identifier.urihttp://hdl.handle.net/10919/33922
dc.description.abstractPrecast girders and cast-in-place decks are a typical type of concrete bridge construction. A key part of this type of construction is developing composite action between the girder and deck. In order to develop composite action, adequate horizontal shear resistance must be provided at the interface. As lightweight concrete is increasingly being used in bridge designs, it is important to understand the horizontal shear behavior of lightweight concrete. The current AASHTO LRFD Specification provides design equations for horizontal shear strength of both lightweight and normal weight concrete. Thirty-six push-off tests were performed to determine if the current code equations accurately predict the horizontal shear strength of precast girders and cast-in-place decks for both normal weight and lightweight concrete. The different test series investigated effects from lightweight and normal weight concrete used for the girder/slab combination and the quantity of shear reinforcement provided across the interface. The test results were compared to the results predicted by current design equations. A structural reliability analysis was performed and the test-to-predicted statistics were used to define LRFD resistance factors and quantify the probability of failure. The current design equations were found to be conservative and more conservative for lightweight concrete than for normal weight concrete.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartScott_JL_T_2010.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectHorizontal Shearen_US
dc.subjectLightweight Concreteen_US
dc.subjectPrecast Girderen_US
dc.subjectCast-In-Place Decken_US
dc.subjectShear Frictionen_US
dc.titleInterface Shear Strength in Lightweight Concrete Bridge Girdersen_US
dc.typeThesisen_US
dc.contributor.departmentCivil Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineCivil Engineeringen_US
dc.contributor.committeechairRoberts-Wollmann, Carin L.en_US
dc.contributor.committeememberMoen, Cristopher D.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07072010-112155/en_US
dc.contributor.committeecochairCousins, Thomas E.en_US
dc.date.sdate2010-07-07en_US
dc.date.rdate2010-07-27
dc.date.adate2010-07-27en_US


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