Seismic assessment and strengthening of an existing steel bridge in Portugal
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/6366 |
Resumo: | This article presents the seismic vulnerability assessment of the S. João de Loure bridge, in Portugal. The single span steel bridge has riveted joints, commonly affected by corrosion, which can lead to a significant stiffness reduction. With the objective of evaluating the influence of the joints stiffness in the structural response of the bridge, a structural model of the bridge was created, and natural frequencies, maximum axial forces and maximum stresses, and maximum mid-span deflection were analysed. Four possible element rupture scenarios where also studied. Two of them where proved to be a risk for the structural safety of the bridge. A commonly used strengthening solution intending to reduce the bridge’s mid-span deflection with external pre-stressing cables was studied. |
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Seismic assessment and strengthening of an existing steel bridge in PortugalExisting steel bridgeJoint stiffnessVulnerability assessmentRupture scenariosStrengthening solutionThis article presents the seismic vulnerability assessment of the S. João de Loure bridge, in Portugal. The single span steel bridge has riveted joints, commonly affected by corrosion, which can lead to a significant stiffness reduction. With the objective of evaluating the influence of the joints stiffness in the structural response of the bridge, a structural model of the bridge was created, and natural frequencies, maximum axial forces and maximum stresses, and maximum mid-span deflection were analysed. Four possible element rupture scenarios where also studied. Two of them where proved to be a risk for the structural safety of the bridge. A commonly used strengthening solution intending to reduce the bridge’s mid-span deflection with external pre-stressing cables was studied.2012-02-14T16:39:01Z2009-01-01T00:00:00Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/6366eng2008-3556Fernandes, C.Varum, H.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:09:55Zoai:ria.ua.pt:10773/6366Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:44:07.003976Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
title |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
spellingShingle |
Seismic assessment and strengthening of an existing steel bridge in Portugal Fernandes, C. Existing steel bridge Joint stiffness Vulnerability assessment Rupture scenarios Strengthening solution |
title_short |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
title_full |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
title_fullStr |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
title_full_unstemmed |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
title_sort |
Seismic assessment and strengthening of an existing steel bridge in Portugal |
author |
Fernandes, C. |
author_facet |
Fernandes, C. Varum, H. |
author_role |
author |
author2 |
Varum, H. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Fernandes, C. Varum, H. |
dc.subject.por.fl_str_mv |
Existing steel bridge Joint stiffness Vulnerability assessment Rupture scenarios Strengthening solution |
topic |
Existing steel bridge Joint stiffness Vulnerability assessment Rupture scenarios Strengthening solution |
description |
This article presents the seismic vulnerability assessment of the S. João de Loure bridge, in Portugal. The single span steel bridge has riveted joints, commonly affected by corrosion, which can lead to a significant stiffness reduction. With the objective of evaluating the influence of the joints stiffness in the structural response of the bridge, a structural model of the bridge was created, and natural frequencies, maximum axial forces and maximum stresses, and maximum mid-span deflection were analysed. Four possible element rupture scenarios where also studied. Two of them where proved to be a risk for the structural safety of the bridge. A commonly used strengthening solution intending to reduce the bridge’s mid-span deflection with external pre-stressing cables was studied. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01T00:00:00Z 2009 2012-02-14T16:39:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/6366 |
url |
http://hdl.handle.net/10773/6366 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2008-3556 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137491426476032 |