Fatigue life assessment on composite concrete-steel bridges

Detalhes bibliográficos
Autor(a) principal: Jurado, Gonzalo
Data de Publicação: 2017
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/82869
Resumo: Dissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e Tecnologia
id RCAP_5f41aeff07e7acaa65c25fb2765ccb80
oai_identifier_str oai:estudogeral.uc.pt:10316/82869
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Fatigue life assessment on composite concrete-steel bridgesFatigue life assessment on composite concrete-steel bridgesfadigapontesdisenhoprogramaçaofatiguebridgesdesignprogramDissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e TecnologiaFatigue is an important consideration in the design of bridges, especially those made of steel. Cycles resulting from the passage of a truck over a bridge depend essentially on bridge type, detail location, span length and vehicles axles configuration. Moreover, as bridges form the keystone of transport networks, their safe operation with minimal maintenance closures is paramount for efficient operation. Yearly increases in the volume of heavy traffic mean a higher number of fatigue damaging load cycles, which leads to taking appropriate measures and finding sustainable solutions, with reduced environmental, economic and social impacts.This work is focused on developing a software tool for the design and assessment of composite concrete-steel bridges under fatigue, according to Eurocodes. The type of bridge used for this project is limited to a road-girder-bridge. Design approaches include both the damage equivalent factor method and the damage accumulation method. For the latter, an algorithm was developed which simulates truck passages over a bridge model and calculates fatigue load effects using the axle positions recorded in real time. This information could serve as an identification tool for bridges where fatigue is likely to be a problem and could form part of a full bridge management framework in the future.Furthermore, the program is applied into a real case study, in order to compare the results and evaluate its efficiency and accuracy. Finally, conclusions are drawn and future work is proposed, leaving space for improvements and new challenges.Fatigue is an important consideration in the design of bridges, especially those made of steel. Cycles resulting from the passage of a truck over a bridge depend essentially on bridge type, detail location, span length and vehicles axles configuration. Moreover, as bridges form the keystone of transport networks, their safe operation with minimal maintenance closures is paramount for efficient operation. Yearly increases in the volume of heavy traffic mean a higher number of fatigue damaging load cycles, which leads to taking appropriate measures and finding sustainable solutions, with reduced environmental, economic and social impacts.This work is focused on developing a software tool for the design and assessment of composite concrete-steel bridges under fatigue, according to Eurocodes. The type of bridge used for this project is limited to a road-girder-bridge. Design approaches include both the damage equivalent factor method and the damage accumulation method. For the latter, an algorithm was developed which simulates truck passages over a bridge model and calculates fatigue load effects using the axle positions recorded in real time. This information could serve as an identification tool for bridges where fatigue is likely to be a problem and could form part of a full bridge management framework in the future.Furthermore, the program is applied into a real case study, in order to compare the results and evaluate its efficiency and accuracy. Finally, conclusions are drawn and future work is proposed, leaving space for improvements and new challenges.2017-02-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10316/82869http://hdl.handle.net/10316/82869TID:202122700engJurado, Gonzaloinfo: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:RCAAP2019-06-02T14:32:04Zoai:estudogeral.uc.pt:10316/82869Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:04:43.701265Repositório 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 Fatigue life assessment on composite concrete-steel bridges
Fatigue life assessment on composite concrete-steel bridges
title Fatigue life assessment on composite concrete-steel bridges
spellingShingle Fatigue life assessment on composite concrete-steel bridges
Jurado, Gonzalo
fadiga
pontes
disenho
programaçao
fatigue
bridges
design
program
title_short Fatigue life assessment on composite concrete-steel bridges
title_full Fatigue life assessment on composite concrete-steel bridges
title_fullStr Fatigue life assessment on composite concrete-steel bridges
title_full_unstemmed Fatigue life assessment on composite concrete-steel bridges
title_sort Fatigue life assessment on composite concrete-steel bridges
author Jurado, Gonzalo
author_facet Jurado, Gonzalo
author_role author
dc.contributor.author.fl_str_mv Jurado, Gonzalo
dc.subject.por.fl_str_mv fadiga
pontes
disenho
programaçao
fatigue
bridges
design
program
topic fadiga
pontes
disenho
programaçao
fatigue
bridges
design
program
description Dissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e Tecnologia
publishDate 2017
dc.date.none.fl_str_mv 2017-02-14
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/82869
http://hdl.handle.net/10316/82869
TID:202122700
url http://hdl.handle.net/10316/82869
identifier_str_mv TID:202122700
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
instname_str 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
_version_ 1799133939177095168

Registros relacionados