Historical Survey, Structural Analysis, and Load Testing of the Ironto Wayside Footbridge

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dc.contributor.authorHuffman, Elaineen
dc.contributor.authorMoen, Cristopher D.en
dc.contributor.departmentCivil and Environmental Engineeringen
dc.date.accessioned2012-01-27T18:46:32Zen
dc.date.available2012-01-27T18:46:32Zen
dc.date.created2009-12-01en
dc.date.issued2012-01-27en
dc.description.abstractA structural study examines the oldest remaining metal bridge in the Commonwealth of Virginia, a wrought iron bowstring arch-truss, designed and manufactured by the King Iron Bridge Company. Finite element analysis is used to evaluate interaction between arch and truss, and the results are compared to field measurements from a live load test. The study reveals that diagonal truss elements decrease arch bending by distributing concentrated vertical loads along the arch toward the abutments in a way consistent with that of modern network arch bridges. With truss diagonals absent, vertical bridge deck deflection doubles. Underslung portal frames provide lateral stiffness to the arch, an innovation that accommodated a shallow arch profile conducive to transportation and erection.en
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/11355en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.ispartofseriesVirginia Tech Structures and Engineering Materials;CE/VPI-ST-09/04en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectHistoric bridgesen
dc.subjectBowstring arch trussen
dc.subjectLive load testen
dc.subjectZenas Kingen
dc.subjectWrought ironen
dc.titleHistorical Survey, Structural Analysis, and Load Testing of the Ironto Wayside Footbridgeen
dc.typeTechnical reporten
dc.type.dcmitypeTexten

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