Yield line analysis of an AASHTO New Jersey concrete parapet wall

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dc.contributor.authorCalloway, Benita R.en
dc.contributor.committeechairBarker, Richard M.en
dc.contributor.committeememberHolzer, Siegfried M.en
dc.contributor.committeememberGarst, Donald A.en
dc.contributor.departmentCivil Engineeringen
dc.date.accessioned2014-03-14T20:44:50Zen
dc.date.adate2009-09-05en
dc.date.available2014-03-14T20:44:50Zen
dc.date.issued1993-06-06en
dc.date.rdate2009-09-05en
dc.date.sdate2009-09-05en
dc.description.abstractConcrete bridge rails are rated according to three performance levels. For classification at a given performance level, the rail must meet specific strength and geometric requirements. To meet the strength requirement, the rail must be able to satisfactorily withstand a transverse concentrated load applied at the top of the rail. This load is called F<sub>t</sub> (kips) and is listed for each performance level in the Draft NCHRP Project 12-33 document entitled Development of a Comprehensive Bridge Specification and Commentary. Researchers at the Texas Transportation Institute have developed equations to determine R<sub>w</sub> (kips), the total transverse resistance of a rail (which must be greater than or equal to F<sub>t</sub>), and L<sub>c</sub> (ft), the critical length of wall failure (Hirsch 1978). These equations (referred to as Hirsch equations is this study) were developed by yield line analysis for a constant thickness concrete parapet wall. The purpose of this study is to develop similar equations for R<sub>w</sub> and L<sub>c</sub> based on yield line analysis of a variable thickness New Jersey concrete parapet wall instead of a constant thickness wall. The results from this study indicate that the Hirsch equations significantly over estimate R<sub>w</sub> for variable thickness concrete walls where M<sub>c</sub>, the flexural resistance of the wall about the horizontal axis, varies substantially over the height of the wall. This study recommends that an average value for M<sub>c</sub>, taken over the height of the wall, be used in the Hirsch equations when this situation arises.en
dc.description.degreeMaster of Scienceen
dc.format.extentx, 71 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-09052009-040731en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09052009-040731/en
dc.identifier.urihttp://hdl.handle.net/10919/34936en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.C344.pdfen
dc.relation.isformatofOCLC# 29040201en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.C344en
dc.subject.lcshBridge railingsen
dc.subject.lcshConcrete bridgesen
dc.subject.lcshYield-line analysisen
dc.titleYield line analysis of an AASHTO New Jersey concrete parapet wallen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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