Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/82869
DC Field | Value | Language |
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dc.contributor.advisor | Rebelo, Carlos Alberto da Silva | - |
dc.contributor.author | Jurado, Gonzalo | - |
dc.date.accessioned | 2018-12-22T18:39:15Z | - |
dc.date.available | 2018-12-22T18:39:15Z | - |
dc.date.issued | 2017-02-14 | - |
dc.date.submitted | 2019-01-19 | - |
dc.identifier.uri | https://hdl.handle.net/10316/82869 | - |
dc.description | Dissertação de Mestrado em Construção Metálica e Mista apresentada à Faculdade de Ciências e Tecnologia | - |
dc.description.abstract | 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. | eng |
dc.description.abstract | 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. | por |
dc.language.iso | eng | - |
dc.rights | openAccess | - |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | fadiga | por |
dc.subject | pontes | por |
dc.subject | disenho | por |
dc.subject | programaçao | por |
dc.subject | fatigue | eng |
dc.subject | bridges | eng |
dc.subject | design | eng |
dc.subject | program | eng |
dc.title | Fatigue life assessment on composite concrete-steel bridges | eng |
dc.title.alternative | Fatigue life assessment on composite concrete-steel bridges | por |
dc.type | masterThesis | - |
degois.publication.location | DEC - FCTUC | - |
degois.publication.title | Fatigue life assessment on composite concrete-steel bridges | eng |
dc.peerreviewed | yes | - |
dc.identifier.tid | 202122700 | - |
thesis.degree.discipline | Engenharia Civil | - |
thesis.degree.grantor | Universidade de Coimbra | - |
thesis.degree.level | 1 | - |
thesis.degree.name | Mestrado em Construção Metálica e Mista | - |
uc.degree.grantorUnit | Faculdade de Ciências e Tecnologia - Departamento de Engenharia Civil | - |
uc.degree.grantorID | 0500 | - |
uc.contributor.author | Jurado, Gonzalo::0000-0003-1466-9971 | - |
uc.degree.classification | 18 | - |
uc.degree.presidentejuri | Santiago, Aldina Maria da Cruz | - |
uc.degree.elementojuri | Rebelo, Carlos Alberto da Silva | - |
uc.degree.elementojuri | Correia, José António Fonseca de Oliveira | - |
uc.degree.elementojuri | Rigueiro, Maria Constança Simões | - |
uc.contributor.advisor | Rebelo, Carlos Alberto da Silva::0000-0003-2543-0114 | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | masterThesis | - |
crisitem.advisor.researchunit | ISISE - Institute for Sustainability and Innovation in Structural Engineering | - |
crisitem.advisor.orcid | 0000-0003-2543-0114 | - |
Appears in Collections: | UC - Dissertações de Mestrado |
Files in This Item:
File | Description | Size | Format | |
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Fatigue life assessment on composite concrete_steel bridges.pdf | 4.97 MB | Adobe PDF | View/Open |
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This item is licensed under a Creative Commons License