Vibration serviceability assessment of the world's longest suspended footbridge in 2020

This paper investigates the vibrations induced by humans through in situ behaviour tests of the 516 Arouca footbridge (Portugal), the world's longest span in 2020 (516 m). The study consists of in situ experimental tests in which the structure was subjected to wind and pedestrian loads. The bri...

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Autores: Tadeu, Antònio, Romero Ordóñez, Antonio, Dias, Sara, Pedro, Filipe, Brett, Michael, Serra, Miguel, Galvín, Pedro, Bandeira, Filipe
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2022
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/137101
Acceso en línea:https://hdl.handle.net/11441/137101
https://doi.org/10.1016/j.istruc.2022.08.015
Access Level:acceso abierto
Palabra clave:Experimental analysis
FE model
Human perception
Human-induced vibrations
In situ testing
Modal identification
Pedestrian traffic
Survey
Suspended footbridge
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spelling Vibration serviceability assessment of the world's longest suspended footbridge in 2020Tadeu, AntònioRomero Ordóñez, AntonioDias, SaraPedro, FilipeBrett, MichaelSerra, MiguelGalvín, PedroBandeira, FilipeExperimental analysisFE modelHuman perceptionHuman-induced vibrationsIn situ testingModal identificationPedestrian trafficSurveySuspended footbridgeThis paper investigates the vibrations induced by humans through in situ behaviour tests of the 516 Arouca footbridge (Portugal), the world's longest span in 2020 (516 m). The study consists of in situ experimental tests in which the structure was subjected to wind and pedestrian loads. The bridge is first described, to provide design and construction details, after which its dynamic behaviour is evaluated. The estimated natural frequencies were found to be similar to those previously computed by the finite element method. In addition, modal damping ratios and scaling factors are given. The dynamic responses due to pedestrian loads are then analysed. The damping ratios were found to increase with higher structural response, which highlights the dependence of the damping ratio on the amplitude of the structural response. Pedestrian comfort was evaluated by analysing the amplitudes and accelerations of the vibrations and complemented by applying a survey to the visitors. The results of the in situ tests showed that the bridge can provide users with a challenging and rewarding experience as they cross it, without suffering displacements and accelerations that they might find unnerving.Ministerio de Ciencia, Innovación y Universidades PID2019-109622RB-C21ElsevierMecánica de Medios Continuos y Teoría de EstructurasTEP245: Ingeniería de las Estructuras2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/137101https://doi.org/10.1016/j.istruc.2022.08.015reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésStructures, 44, 457-475.Supplementary data: https://ars.els-cdn.com/content/image/1-s2.0-S2352012422006683-mmc1.docxPID2019-109622RB-C21https://www.sciencedirect.com/science/article/pii/S2352012422006683info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1371012026-06-17T12:51:07Z
dc.title.none.fl_str_mv Vibration serviceability assessment of the world's longest suspended footbridge in 2020
title Vibration serviceability assessment of the world's longest suspended footbridge in 2020
spellingShingle Vibration serviceability assessment of the world's longest suspended footbridge in 2020
Tadeu, Antònio
Experimental analysis
FE model
Human perception
Human-induced vibrations
In situ testing
Modal identification
Pedestrian traffic
Survey
Suspended footbridge
title_short Vibration serviceability assessment of the world's longest suspended footbridge in 2020
title_full Vibration serviceability assessment of the world's longest suspended footbridge in 2020
title_fullStr Vibration serviceability assessment of the world's longest suspended footbridge in 2020
title_full_unstemmed Vibration serviceability assessment of the world's longest suspended footbridge in 2020
title_sort Vibration serviceability assessment of the world's longest suspended footbridge in 2020
dc.creator.none.fl_str_mv Tadeu, Antònio
Romero Ordóñez, Antonio
Dias, Sara
Pedro, Filipe
Brett, Michael
Serra, Miguel
Galvín, Pedro
Bandeira, Filipe
author Tadeu, Antònio
author_facet Tadeu, Antònio
Romero Ordóñez, Antonio
Dias, Sara
Pedro, Filipe
Brett, Michael
Serra, Miguel
Galvín, Pedro
Bandeira, Filipe
author_role author
author2 Romero Ordóñez, Antonio
Dias, Sara
Pedro, Filipe
Brett, Michael
Serra, Miguel
Galvín, Pedro
Bandeira, Filipe
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Mecánica de Medios Continuos y Teoría de Estructuras
TEP245: Ingeniería de las Estructuras
dc.subject.none.fl_str_mv Experimental analysis
FE model
Human perception
Human-induced vibrations
In situ testing
Modal identification
Pedestrian traffic
Survey
Suspended footbridge
topic Experimental analysis
FE model
Human perception
Human-induced vibrations
In situ testing
Modal identification
Pedestrian traffic
Survey
Suspended footbridge
description This paper investigates the vibrations induced by humans through in situ behaviour tests of the 516 Arouca footbridge (Portugal), the world's longest span in 2020 (516 m). The study consists of in situ experimental tests in which the structure was subjected to wind and pedestrian loads. The bridge is first described, to provide design and construction details, after which its dynamic behaviour is evaluated. The estimated natural frequencies were found to be similar to those previously computed by the finite element method. In addition, modal damping ratios and scaling factors are given. The dynamic responses due to pedestrian loads are then analysed. The damping ratios were found to increase with higher structural response, which highlights the dependence of the damping ratio on the amplitude of the structural response. Pedestrian comfort was evaluated by analysing the amplitudes and accelerations of the vibrations and complemented by applying a survey to the visitors. The results of the in situ tests showed that the bridge can provide users with a challenging and rewarding experience as they cross it, without suffering displacements and accelerations that they might find unnerving.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/137101
https://doi.org/10.1016/j.istruc.2022.08.015
url https://hdl.handle.net/11441/137101
https://doi.org/10.1016/j.istruc.2022.08.015
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Structures, 44, 457-475.
Supplementary data: https://ars.els-cdn.com/content/image/1-s2.0-S2352012422006683-mmc1.docx
PID2019-109622RB-C21
https://www.sciencedirect.com/science/article/pii/S2352012422006683
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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