Influence of the cracking consideration in the displacements of a shallow tunnel lined in steel-reinforced concrete: numerical model
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
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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Revista IBRACON de Estruturas e Materiais |
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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 |
_version_ |
1754193606152814592 |