Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads

Concentrated loads induced during the excavation stage by Tunnel Boring Machines (TBMs) is still a matter of discussion into the tunnelling construction field, this having a strong impact from both the technical (e.g., durability and service conditions) and the economic perspectives. Fiber reinforce...

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Detalles Bibliográficos
Autores: Nogales Arroyo, Alejandro|||0000-0002-7009-8440, Fuente Antequera, Albert de la|||0000-0002-8016-1677
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/182730
Acceso en línea:https://hdl.handle.net/2117/182730
https://dx.doi.org/10.1016/j.tust.2020.103342
Access Level:acceso abierto
Palabra clave:Fiber-reinforced concrete
Tunnels--Design and construction
Fibre reinforced concrete
TBM thrust
Concentrated load
Crack width
Numerical simulation
Construcció en formigó armat amb fibres
Túnels -- Disseny i construcció
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
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spelling Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loadsNogales Arroyo, Alejandro|||0000-0002-7009-8440Fuente Antequera, Albert de la|||0000-0002-8016-1677Fiber-reinforced concreteTunnels--Design and constructionFibre reinforced concreteTBM thrustConcentrated loadCrack widthNumerical simulationConstrucció en formigó armat amb fibresTúnels -- Disseny i construccióÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigóConcentrated loads induced during the excavation stage by Tunnel Boring Machines (TBMs) is still a matter of discussion into the tunnelling construction field, this having a strong impact from both the technical (e.g., durability and service conditions) and the economic perspectives. Fiber reinforced concrete (FRC) has been gaining acceptance as a structural material for producing precast segments as this has proven to lead to various advantages respect to the traditional reinforced concrete, especially for improving the crack control during transient loading situations. In this sense, several experimental programs and numerical studies were previously carried out in which the different geometric and mechanical governing variables were analyzed and, from the results, valuable conclusions were derived. Nonetheless, there are still observed lacks and gaps related with the optimum reinforcement design (FRC strength class and/or amount of traditional steel bar reinforcement) which is often hindering the use of fibers as main reinforcement for concrete segments. The main purpose of the research consist in developing a parametric analysis related with the TBM-thrust effects on FRC segments by means of using a non-linear 3D FEM, previously calibrated with full-scale tests. The results are used to determine the range of FRC strength classes suitable for controlling the crack with during the TBM thrust phase. The results and conclusions are expected to be useful for tunnels designers when establishing the FRC mechanical requirements.Peer ReviewedElsevier20202020-04-0120202020-04-01journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/182730https://dx.doi.org/10.1016/j.tust.2020.103342reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1827302026-05-27T15:37:01Z
dc.title.none.fl_str_mv Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
title Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
spellingShingle Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
Nogales Arroyo, Alejandro|||0000-0002-7009-8440
Fiber-reinforced concrete
Tunnels--Design and construction
Fibre reinforced concrete
TBM thrust
Concentrated load
Crack width
Numerical simulation
Construcció en formigó armat amb fibres
Túnels -- Disseny i construcció
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
title_short Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
title_full Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
title_fullStr Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
title_full_unstemmed Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
title_sort Crack width design approach for fibre reinforced concrete tunnel segments for TBM thrust loads
dc.creator.none.fl_str_mv Nogales Arroyo, Alejandro|||0000-0002-7009-8440
Fuente Antequera, Albert de la|||0000-0002-8016-1677
author Nogales Arroyo, Alejandro|||0000-0002-7009-8440
author_facet Nogales Arroyo, Alejandro|||0000-0002-7009-8440
Fuente Antequera, Albert de la|||0000-0002-8016-1677
author_role author
author2 Fuente Antequera, Albert de la|||0000-0002-8016-1677
author2_role author
dc.subject.none.fl_str_mv Fiber-reinforced concrete
Tunnels--Design and construction
Fibre reinforced concrete
TBM thrust
Concentrated load
Crack width
Numerical simulation
Construcció en formigó armat amb fibres
Túnels -- Disseny i construcció
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
topic Fiber-reinforced concrete
Tunnels--Design and construction
Fibre reinforced concrete
TBM thrust
Concentrated load
Crack width
Numerical simulation
Construcció en formigó armat amb fibres
Túnels -- Disseny i construcció
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
description Concentrated loads induced during the excavation stage by Tunnel Boring Machines (TBMs) is still a matter of discussion into the tunnelling construction field, this having a strong impact from both the technical (e.g., durability and service conditions) and the economic perspectives. Fiber reinforced concrete (FRC) has been gaining acceptance as a structural material for producing precast segments as this has proven to lead to various advantages respect to the traditional reinforced concrete, especially for improving the crack control during transient loading situations. In this sense, several experimental programs and numerical studies were previously carried out in which the different geometric and mechanical governing variables were analyzed and, from the results, valuable conclusions were derived. Nonetheless, there are still observed lacks and gaps related with the optimum reinforcement design (FRC strength class and/or amount of traditional steel bar reinforcement) which is often hindering the use of fibers as main reinforcement for concrete segments. The main purpose of the research consist in developing a parametric analysis related with the TBM-thrust effects on FRC segments by means of using a non-linear 3D FEM, previously calibrated with full-scale tests. The results are used to determine the range of FRC strength classes suitable for controlling the crack with during the TBM thrust phase. The results and conclusions are expected to be useful for tunnels designers when establishing the FRC mechanical requirements.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-04-01
2020
2020-04-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/182730
https://dx.doi.org/10.1016/j.tust.2020.103342
url https://hdl.handle.net/2117/182730
https://dx.doi.org/10.1016/j.tust.2020.103342
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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