Importance of inertial effects in damaged bridge moving load interaction

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dc.contributor.author Pakrashi, Vikram
dc.contributor.author O'Connor, Alan J.
dc.contributor.author Basu, Biswajit
dc.contributor.editor Cannon, Eamon
dc.contributor.editor West, Roger
dc.date.accessioned 2011-04-12T13:40:24Z
dc.date.available 2011-04-12T13:40:24Z
dc.date.issued 2008-12
dc.identifier.citation Pakrashi, V., O'Connor, A.J., Basu B., 2008. Importance of Inertial Effects in Damaged Bridge Moving Load Interaction. In: Cannon, E., West, R. (ed.s) Proceedings BRI08_CRI08 Joint Symposium: Bridge Research in Ireland 2008/Concrete Research in Ireland 2008. Galway, Ireland 4 - 5 Dec 2008 en
dc.identifier.uri http://hdl.handle.net/10468/277
dc.description.abstract This paper investigates the inertial effects of the passage of a moving oscillator over a single span simply supported damaged Euler Bernoulli beam for a range of speeds of the moving oscillator and a range of damage conditions. It is observed that the variation of critical speeds due to damage forms a distribution only in the high speed range and such variation is masked by inertial effects of the moving oscillator in the comparatively lower speed range. The damage is modeled as an open crack and a rotational spring analogy is followed whereby it is assumed that the effect of the crack is local on the beam. The moving oscillator is modeled as a two degree of freedom system, where each degree of freedom is characterized by a mass and a spring – dashpot element. The finding is useful for engineers in terms of identification of speed regions of interest in a bridge – vehicle interaction process and for the choice of control systems to suppress such vibrations. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.relation.ispartof Proceedings BRI08_CRI08 Joint Symposium: Bridge Research in Ireland 2008/Concrete Research in Ireland 2008. Galway, Ireland 4 - 5 Dec 2008.
dc.subject Bridge-vehicle interaction en
dc.subject Open crack en
dc.subject Critical speed en
dc.subject Moving oscillator en
dc.subject Rotational spring model en
dc.subject Damage en
dc.subject.lcsh Acceleration (Mechanics) en
dc.subject.lcsh Bridges--Testing en
dc.subject.lcsh Bridges--Live loads en
dc.title Importance of inertial effects in damaged bridge moving load interaction en
dc.title.alternative Critical speeds in damaged beam - moving oscillator interaction: the importance of inertial effects en
dc.type Conference item en
dc.internal.authorurl http://publish.ucc.ie/researchprofiles/D012/vpakrashi en
dc.internal.authorcontactother Vikram Pakrashi, Civil Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: v.pakrashi@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2010-10-07T14:26:06Z
dc.description.version Accepted Version en
dc.internal.rssid 52679249
dc.description.status Peer reviewed en
dc.internal.copyrightchecked Ni Nuallain, Nora Aine <N.NiNuallain@ucc.ie>, Chair of organising committee, email 16 Mar 2011. BCRI have copyright but libraries and authors are free to put their papers online. en
dc.internal.IRISemailaddress v.pakrashi@ucc.ie en


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