Reliability index and parameter importance for bridge traffic loading definition changes

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dc.contributor.authorHanley, Ciarán
dc.contributor.authorFrangopol, Dan M.
dc.contributor.authorKelliher, Denis
dc.contributor.authorPakrashi, Vikram
dc.contributor.funderIrish Research Councilen
dc.contributor.funderJohn Sisk & Son Ltd, Irelanden
dc.date.accessioned2021-08-27T08:56:35Z
dc.date.available2021-08-27T08:56:35Z
dc.date.issued2018-03
dc.date.updated2021-08-27T08:38:33Z
dc.description.abstractWith the continued evolution of traffic loading specifications, safety classifications of bridge structures are subject to change, independent of the actual condition of the structures at that point in time. As investment decisions are often based on these safety classifications, a reclassification of safety level due to changing of traffic load definitions can lead to misinterpretation of the actual state of the structure, and thus lead to a misallocation of resources. Should a reclassification of safety occur after a change in traffic load specification, the question as to whether modern design codes are producing more or less robust bridges than previous design codes is raised. To investigate this, three bridge structures were assessed for evolving definitions of traffic load. Using deterministic and probabilistic methods, critical limit states were assessed and the associated reliability indices and parametric sensitivity factors were determined and compared across various code specifications. This comparison allowed for an evaluation of how the evolution of traffic load over time influences the computed safety of bridge structures.en
dc.description.sponsorshipJohn Sisk & Son Ltd, Ireland (Postgraduate Research Scholarship in Civil Engineering)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHanley, C., Frangopol, D. M., Kelliher, D. and Pakrashi, V. (2018) 'Reliability index and parameter importance for bridge traffic loading definition changes', Proceedings of the ICE - Bridge Engineering, 171(1), pp. 13-24. doi: 10.1680/jbren.15.00049en
dc.identifier.doi10.1680/jbren.15.00049en
dc.identifier.eissn1751-7664
dc.identifier.endpage24en
dc.identifier.issn1478-4637
dc.identifier.issued1en
dc.identifier.journaltitleProceedings of the ICE - Bridge Engineeringen
dc.identifier.startpage13en
dc.identifier.urihttps://hdl.handle.net/10468/11802
dc.identifier.volume171en
dc.language.isoenen
dc.publisherICE Publishingen
dc.rights© 2018, ICE Publishing. All rights reserved.en
dc.subjectLifetime performance analysisen
dc.subjectHighway bridgesen
dc.subjectCivil infrastructureen
dc.subjectOptimizationen
dc.subjectSensitivityen
dc.subjectNetworken
dc.subjectSuperstructuresen
dc.subjectManagementen
dc.subjectSafetyen
dc.subjectCosten
dc.titleReliability index and parameter importance for bridge traffic loading definition changesen
dc.typeConference itemen
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