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

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dc.citation.articleNumber2222en_US
dc.citation.issueNumber11en_US
dc.citation.journalTitleApplied Sciencesen_US
dc.citation.volumeNumber9en_US
dc.contributor.authorZhao, Hanweien_US
dc.contributor.authorDing, Youliangen_US
dc.contributor.authorNagarajaiah, Satishen_US
dc.contributor.authorLi, Aiqunen_US
dc.date.accessioned2019-08-28T16:10:11Zen_US
dc.date.available2019-08-28T16:10:11Zen_US
dc.date.issued2019en_US
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. en_US
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.en_US
dc.identifier.doihttps://doi.org/10.3390/app9112222en_US
dc.identifier.urihttps://hdl.handle.net/1911/107366en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
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.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subject.keywordstructural health monitoringen_US
dc.subject.keywordjointless bridgeen_US
dc.subject.keywordhigh-speed railwayen_US
dc.subject.keywordbearingen_US
dc.subject.keywordexpansion deviceen_US
dc.subject.keyworddisplacement analysisen_US
dc.titleLongitudinal Displacement Behavior and Girder End Reliability of a Jointless Steel-Truss Arch Railway Bridge during Operationen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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