Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model

Detalhes bibliográficos
Autor(a) principal: Jensen,Betina Mariano
Data de Publicação: 2020
Outros Autores: Bernaud,Denise, Campos Filho,Américo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000600205
Resumo: abstract: The study of shallow tunnels introduces different aspects when compared to deep tunnels analysis. Among these characteristics can be emphasized the non-uniform shape of the deformed cross-section and the impossibility of some simplifications such as the consideration of homogeneous stresses around the excavation. Since the tunnel lining is subject to combined bending and compression, shallow tunnels are more susceptible to the development of final tensile stresses (not founded in deep tunnels) and the consequent concrete cracking. This paper presents a numerical simulation in finite elements with the ANSYS software. The purpose of the study is to analyze the cracking influence in the displacements of shallow tunnels, treating the concrete behavior by three different models: elastic, viscoelastic and viscoelastic with cracking effects.
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spelling Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical modelshallow tunnelscrackingfinite element methodconcreteviscoelasticityabstract: The study of shallow tunnels introduces different aspects when compared to deep tunnels analysis. Among these characteristics can be emphasized the non-uniform shape of the deformed cross-section and the impossibility of some simplifications such as the consideration of homogeneous stresses around the excavation. Since the tunnel lining is subject to combined bending and compression, shallow tunnels are more susceptible to the development of final tensile stresses (not founded in deep tunnels) and the consequent concrete cracking. This paper presents a numerical simulation in finite elements with the ANSYS software. The purpose of the study is to analyze the cracking influence in the displacements of shallow tunnels, treating the concrete behavior by three different models: elastic, viscoelastic and viscoelastic with cracking effects.IBRACON - Instituto Brasileiro do Concreto2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000600205Revista IBRACON de Estruturas e Materiais v.13 n.6 2020reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952020000600006info:eu-repo/semantics/openAccessJensen,Betina MarianoBernaud,DeniseCampos Filho,Américoeng2020-10-19T00:00:00Zoai:scielo:S1983-41952020000600205Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2020-10-19T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
title Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
spellingShingle Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
Jensen,Betina Mariano
shallow tunnels
cracking
finite element method
concrete
viscoelasticity
title_short Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
title_full Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
title_fullStr Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
title_full_unstemmed Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
title_sort Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
author Jensen,Betina Mariano
author_facet Jensen,Betina Mariano
Bernaud,Denise
Campos Filho,Américo
author_role author
author2 Bernaud,Denise
Campos Filho,Américo
author2_role author
author
dc.contributor.author.fl_str_mv Jensen,Betina Mariano
Bernaud,Denise
Campos Filho,Américo
dc.subject.por.fl_str_mv shallow tunnels
cracking
finite element method
concrete
viscoelasticity
topic shallow tunnels
cracking
finite element method
concrete
viscoelasticity
description abstract: The study of shallow tunnels introduces different aspects when compared to deep tunnels analysis. Among these characteristics can be emphasized the non-uniform shape of the deformed cross-section and the impossibility of some simplifications such as the consideration of homogeneous stresses around the excavation. Since the tunnel lining is subject to combined bending and compression, shallow tunnels are more susceptible to the development of final tensile stresses (not founded in deep tunnels) and the consequent concrete cracking. This paper presents a numerical simulation in finite elements with the ANSYS software. The purpose of the study is to analyze the cracking influence in the displacements of shallow tunnels, treating the concrete behavior by three different models: elastic, viscoelastic and viscoelastic with cracking effects.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000600205
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000600205
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952020000600006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.13 n.6 2020
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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