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Experimental Validation of a Double-Deck Track-Bridge System under Railway Traffic

2022Journal article Open access
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dc.contributor.authorSaramago, Gabriel
dc.contributor.authorMontenegro, Pedro Aires
dc.contributor.authorRibeiro, Diogo
dc.contributor.authorSilva, Artur
dc.contributor.authorSantos, Sergio
dc.contributor.authorCalçada, Rui
dc.date.accessioned2023-01-20T14:39:28Z
dc.date.available2023-01-20T14:39:28Z
dc.date.issued2022
dc.description.abstractThis article describes the experimental and numerical evaluation of the dynamic behaviour of the Cascalheira bridge, located on the Northern Line of the Portuguese railway network. The bridge has a short span formed by two filler-beam half-decks, each one accommodating a railway track. The study includes the development of a finite element numerical model in ANSYS® software, as well as in situ dynamic characterization tests of the structure, namely ambient vibration tests, for the estimation of natural frequencies, modes shapes and damping coefficients, and a dynamic test under railway traffic, particularly for the passage of the Alfa Pendular train. The damping coefficients’ estimation was performed based on the Prony method, which proved effective in situations where the classical methods (e.g., decrement logarithm) tend to fail, particularly in the case of mode shapes with closed natural frequencies, as typically happens with the first vertical bending and torsion modes. The updating of the numerical model of the bridge was carried out using an iterative methodology based on a genetic algorithm, allowing an upgrade of the agreement between the numerical and experimental modal parameters. Particular attention was given to the characterization of the ballast degradation over the longitudinal joint between the two half-decks, given its influence in the global dynamic behavior of this type of double-deck bridges. Finally, the validation of the numerical model was performed by comparing the acceleration response of the structure under traffic actions, by means of numerical dynamic analyses considering vehicle-bridge interaction and including track irregularities, with the ones obtained by the dynamic test under traffic actions. The results of the calibrated numerical model showed a better agreement with the experimental results based on the accelerations evaluated in several measurement points located in both half-decks. In the validation process the vertical stiffness of the supports, as well as the degradation of the ballast located over the longitudinal joint between half-decks, was demonstrated to be relevant for the accuracy and effectiveness of the numerical models.pt_PT
dc.description.sponsorshipThis work has been supported by the projects IN2TRACK2 and IN2TRACK3 funded by the Shift2Rail Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme under grant agreements No. 826255 and No. 101012456, respectively. Moreover, this work was also financially supported by Base Funding—UIDB/04708/2020 and Programmatic Funding— UIDP/04708/2020 of the CONSTRUCT—Instituto de I&D em Estruturas e Construções—funded by national funds through the FCT/MCTES (PIDDAC). Finally, the second and fourth authors acknowledge Grant No. 2020.00305.CEECIND from the Stimulus of Scientific Employment, Individual Support (CEECIND)—3rd Edition provided by “FCT—Fundação para a Ciência e Tecnologia” and project operation NORTE-08-5369-FSE-000027 by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Social Fund (ESF), respectively.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/su14105794pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/21735
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.relationNORTE-08-5369-FSE-000027pt_PT
dc.relationResearch into enhanced track and switch and crossing system 2
dc.relationIN2TRACK3
dc.relationInstitute of R&D in Structures and Construction
dc.relationInstitute of R&D in Structures and Construction
dc.relationOn-board condition monitoring system for track fault detection and maintenance
dc.relation.publisherversionhttps://www.mdpi.com/2071-1050/14/10/5794pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectRailway bridgept_PT
dc.subjectNumerical modellingpt_PT
dc.subjectDynamic testingpt_PT
dc.subjectModel updatingpt_PT
dc.subjectExperimental validationpt_PT
dc.subjectTrain-bridge interactionpt_PT
dc.titleExperimental Validation of a Double-Deck Track-Bridge System under Railway Trafficpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleResearch into enhanced track and switch and crossing system 2
oaire.awardTitleIN2TRACK3
oaire.awardTitleInstitute of R&D in Structures and Construction
oaire.awardTitleInstitute of R&D in Structures and Construction
oaire.awardTitleOn-board condition monitoring system for track fault detection and maintenance
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/826255/EU
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/101012456/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04708%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04708%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 3ed/2020.00305.CEECIND%2FCP1590%2FCT0003/PT
oaire.citation.issue10pt_PT
oaire.citation.startPage5794pt_PT
oaire.citation.titleSustainabilitypt_PT
oaire.citation.volume14pt_PT
oaire.fundingStreamH2020
oaire.fundingStreamH2020
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 3ed
person.familyNameSaramago
person.familyNameRibeiro
person.givenNameGabriel
person.givenNameDiogo
person.identifier277594
person.identifier.ciencia-id2318-666E-AA75
person.identifier.orcid0000-0001-7738-1487
person.identifier.orcid0000-0001-8624-9904
person.identifier.scopus-author-id24476782300
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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