Longitudinal Displacement Behavior and Girder End Reliability of a Jointless Steel-Truss Arch Railway Bridge during Operation

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dc.citation.articleNumber2222
dc.citation.issueNumber11
dc.citation.journalTitleApplied Sciences
dc.citation.volumeNumber9
dc.contributor.authorZhao, Hanwei
dc.contributor.authorDing, Youliang
dc.contributor.authorNagarajaiah, Satish
dc.contributor.authorLi, Aiqun
dc.date.accessioned2019-08-28T16:10:11Z
dc.date.available2019-08-28T16:10:11Z
dc.date.issued2019
dc.description.abstractThe long length and complex service load form conflicts with the low limits of longitudinal and transverse displacements of jointless bridge design. The longitudinal displacements of the Nanjing Dashengguan Yangtze River Bridge, a jointless steel-truss arch railway bridge, and its girder end reliability are investigated in this article. The time–frequency characteristics of the longitudinal displacements of bearings and expansion joints are analyzed using the empirical wavelet transform. The long-term characteristics of the longitudinal displacements of bearings and expansion joints in the operation period are explored. Furthermore, the relative transverse displacements of the bridge girder end are calculated using longitudinal displacement monitoring data. The mechanical behaviors of the expansion device under relative transverse displacements are studied. The reliability of expansion devices and crossing trains under the effects of relative transverse displacements is studied using kernel density estimation. The main results demonstrate that: (1) The longitudinal displacements of bearings and expansion joints are mainly influenced by environmental temperature. (2) The maximum relative transverse displacement of the expansion joint is close to 1 mm in long-term bridge operation, with the transverse rail deflection at the expansion device approaching 1 mm, which reduces the stability of cross high-speed trains. 
dc.identifier.citationZhao, Hanwei, Ding, Youliang, Nagarajaiah, Satish, et al.. "Longitudinal Displacement Behavior and Girder End Reliability of a Jointless Steel-Truss Arch Railway Bridge during Operation." <i>Applied Sciences,</i> 9, no. 11 (2019) MDPI: https://doi.org/10.3390/app9112222.
dc.identifier.doihttps://doi.org/10.3390/app9112222
dc.identifier.urihttps://hdl.handle.net/1911/107366
dc.language.isoeng
dc.publisherMDPI
dc.rightsThis is an open access article distributed under theﾠCreative Commons Attribution Licenseﾠwhich permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.keywordstructural health monitoring
dc.subject.keywordjointless bridge
dc.subject.keywordhigh-speed railway
dc.subject.keywordbearing
dc.subject.keywordexpansion device
dc.subject.keyworddisplacement analysis
dc.titleLongitudinal Displacement Behavior and Girder End Reliability of a Jointless Steel-Truss Arch Railway Bridge during Operation
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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