Semi-analytical determination of natural frequencies and mode shapes of multi-span bridge decks

DC FieldValueLanguage
dc.contributor.authorRezaiguia, Abdelouahab-
dc.contributor.authorLaefer, Debra F.-
dc.date.accessioned2012-04-10T15:50:02Z-
dc.date.available2012-04-10T15:50:02Z-
dc.date.copyright2009 ElsevierLtd.en
dc.date.issued2009-12-
dc.identifier.citationJournal of Sound and Vibrationen
dc.identifier.issn0022-460X-
dc.identifier.urihttp://hdl.handle.net/10197/3563-
dc.description.abstractThe determination of the natural frequencies and mode shapes of structures requires an analytical, semi-analytical or numerical method. This paper presents a new semi-analytical approach to determine natural frequencies and mode shapes of a multi-span, continuous, orthotropic bridge deck. The suggested approach is based on the modal method, which differs from other approaches in its decomposition of the admissible functions defining the mode shapes. Implementation of this technique is simple and enables avoidance of cumbersome mathematical calculations. In this paper, application of the semi-analytic approach to a three-span, orthotropic roadway bridge deck is compared in the first 16 modes of previously published fully analytical results and to a finite element method analysis. The simplified implementation matches within 2 % in all cases, with the additional benefit of including intermodal coupling. The approach can be extended to similar bridges with more than three spans.en
dc.description.sponsorshipNot applicableen
dc.format.extent1973658 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherElsevieren
dc.relation.requiresCritical Infrastructure Group Research Collectionen
dc.rightsThis is the author’s version of a work that was accepted for publication in Journal of Sound and Vibration. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Sound and Vibration, 328 (3): 291-300 DOI: 10.1016/j.jsv.2009.08.007en
dc.subjectNatural frequenciesen
dc.subjectNatural mode shapesen
dc.subjectMulti-span bridge decken
dc.subjectOrthotropic plateen
dc.subjectFree vibrationen
dc.subjectModal methoden
dc.subject.lcshStructural dynamicsen
dc.subject.lcshBridges--Vibrationen
dc.subject.lcshLong-span bridgesen
dc.titleSemi-analytical determination of natural frequencies and mode shapes of multi-span bridge decksen
dc.typeJournal Articleen
dc.internal.availabilityFull text availableen
dc.internal.webversionshttp://dx.doi.org/10.1016/j.jsv.2009.08.007-
dc.statusPeer revieweden
dc.identifier.volume328en
dc.identifier.issue3en
dc.identifier.startpage291en
dc.identifier.endpage300en
dc.identifier.doi10.1016/j.jsv.2009.08.007-
dc.neeo.contributorRezaiguia|Abdelouahab|aut|-
dc.neeo.contributorLaefer|Debra F.|aut|-
dc.description.adminau, ti, ke - kpw1/12/11en
item.grantfulltextopen-
item.fulltextWith Fulltext-
Appears in Collections:Critical Infrastructure Group Research Collection
Civil Engineering Research Collection
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