Modelling and testing of a historic steel suspension footbridge in Ireland

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dc.contributor.authorO'Donnell, Deirdre
dc.contributor.authorWright, Robert
dc.contributor.authorO'Byrne, Michael
dc.contributor.authorSadhu, Ayan
dc.contributor.authorEdwards Murphy, Fiona
dc.contributor.authorCahill, Paul
dc.contributor.authorKelliher, Denis
dc.contributor.authorGhosh, Bidisha
dc.contributor.authorSchoefs, Franck
dc.contributor.authorMathewson, Alan
dc.contributor.authorPopovici, Emanuel M.
dc.contributor.authorPakrashi, Vikram
dc.date.accessioned2021-08-27T10:23:15Z
dc.date.available2021-08-27T10:23:15Z
dc.date.issued2017-05-15
dc.date.updated2021-08-27T09:29:03Z
dc.description.abstractDaly's Bridge is a historic steel suspension footbridge in Ireland, known locally as the 'Shaky Bridge' for its noticeable movement under pedestrian loading. Although there is concern regarding the performance of the structure, testing or modelling has not been carried out to date and inadequate information exists in relation to carrying out such analyses. In this paper, Daly's Bridge is instrumented and tested for the first time and a model of the bridge is established and improved in the process. Apart from ambient vibration, excitation from traversing pedestrians and cyclists is considered. Video analysis of dynamic deflection, a wavelet-packet-based technique using acceleration responses and dynamic measurements from a cheap smartphone accelerometer application are used to identify and compare the natural frequency of the bridge. The work contributes to the evidence base of full-scale measurements from instrumenting and analysing responses of aging pedestrian bridges, highlighting the complexity, challenges, opportunities and limitations related to the varied levels of information available from disparate sources. The study also highlights the need to investigate to what extent cheap sensors can be successfully used as compared to their more expensive and sophisticated counterparts.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationO'Donnell, D., Wright, R., O'Byrne, M., Sadhu, A., Edwards Murphy, F., Cahill, P., Kelliher, D., Ghosh, B., Schoefs, F., Mathewson, A., Popovici, E. and Pakrashi, V. (2017) 'Modelling and testing of a historic steel suspension footbridge in Ireland', Proceedings of the ICE - Bridge Engineering, 170(2), pp. 116-132. doi: 10.1680/jbren.15.00047en
dc.identifier.doi10.1680/jbren.15.00047en
dc.identifier.eissn1751-7664
dc.identifier.endpage132en
dc.identifier.issn1478-4637
dc.identifier.issued2en
dc.identifier.journaltitleProceedings of the ICE - Bridge Engineeringen
dc.identifier.startpage116en
dc.identifier.urihttps://hdl.handle.net/10468/11803
dc.identifier.volume170en
dc.language.isoenen
dc.publisherICE Publishingen
dc.rights© 2017, ICE Publishing. All rights reserved.en
dc.subjectBridgesen
dc.subjectField testing and monitoringen
dc.subjectMaintenance and inspectionen
dc.titleModelling and testing of a historic steel suspension footbridge in Irelanden
dc.typeConference itemen
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