Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor

Detalhes bibliográficos
Autor(a) principal: Prado,Fabio Selleio
Data de Publicação: 2021
Outros Autores: Stucchi,Fernando Rebouças, Meneghetti,Leila Cristina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Latin American journal of solids and structures (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000800509
Resumo: Abstract The construction methods currently adopted for multi-story concrete buildings resorts the strategy to cast columns and slabs with high and normal compressive concrete strength, respectively. The intersection region affects the load transfer performance of the columns, causing expressive confinement stress in interior columns. However, when the confinement is only provided by two sides, as corner columns, it is not enough to increase the lateral stress. The structural behavior of corner columns, represented by isolated columns, also called sandwich column, is investigated in this paper through numerical nonlinear models. The lateral stresses induced by the uniaxial load applied to the sandwich columns are computed when the influence of concrete strength column-slab ratio, slab thickness and the column width ratio and the biggest dimension of the column’s cross section were tested. A set of expressions were proposed to calculate the effective compressive strength of the column based on numerical results. The predicted effective strength has shown a good agreement with experimental results collected from the literature.
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spelling Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete flooreffective compressive strengthFinite Element MethodReinforced concreteConfinementHigh strength concreteAbstract The construction methods currently adopted for multi-story concrete buildings resorts the strategy to cast columns and slabs with high and normal compressive concrete strength, respectively. The intersection region affects the load transfer performance of the columns, causing expressive confinement stress in interior columns. However, when the confinement is only provided by two sides, as corner columns, it is not enough to increase the lateral stress. The structural behavior of corner columns, represented by isolated columns, also called sandwich column, is investigated in this paper through numerical nonlinear models. The lateral stresses induced by the uniaxial load applied to the sandwich columns are computed when the influence of concrete strength column-slab ratio, slab thickness and the column width ratio and the biggest dimension of the column’s cross section were tested. A set of expressions were proposed to calculate the effective compressive strength of the column based on numerical results. The predicted effective strength has shown a good agreement with experimental results collected from the literature.Associação Brasileira de Ciências Mecânicas2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000800509Latin American Journal of Solids and Structures v.18 n.8 2021reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78256714info:eu-repo/semantics/openAccessPrado,Fabio SelleioStucchi,Fernando RebouçasMeneghetti,Leila Cristinaeng2021-11-24T00:00:00Zoai:scielo:S1679-78252021000800509Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2021-11-24T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
title Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
spellingShingle Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
Prado,Fabio Selleio
effective compressive strength
Finite Element Method
Reinforced concrete
Confinement
High strength concrete
title_short Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
title_full Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
title_fullStr Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
title_full_unstemmed Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
title_sort Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
author Prado,Fabio Selleio
author_facet Prado,Fabio Selleio
Stucchi,Fernando Rebouças
Meneghetti,Leila Cristina
author_role author
author2 Stucchi,Fernando Rebouças
Meneghetti,Leila Cristina
author2_role author
author
dc.contributor.author.fl_str_mv Prado,Fabio Selleio
Stucchi,Fernando Rebouças
Meneghetti,Leila Cristina
dc.subject.por.fl_str_mv effective compressive strength
Finite Element Method
Reinforced concrete
Confinement
High strength concrete
topic effective compressive strength
Finite Element Method
Reinforced concrete
Confinement
High strength concrete
description Abstract The construction methods currently adopted for multi-story concrete buildings resorts the strategy to cast columns and slabs with high and normal compressive concrete strength, respectively. The intersection region affects the load transfer performance of the columns, causing expressive confinement stress in interior columns. However, when the confinement is only provided by two sides, as corner columns, it is not enough to increase the lateral stress. The structural behavior of corner columns, represented by isolated columns, also called sandwich column, is investigated in this paper through numerical nonlinear models. The lateral stresses induced by the uniaxial load applied to the sandwich columns are computed when the influence of concrete strength column-slab ratio, slab thickness and the column width ratio and the biggest dimension of the column’s cross section were tested. A set of expressions were proposed to calculate the effective compressive strength of the column based on numerical results. The predicted effective strength has shown a good agreement with experimental results collected from the literature.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
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=S1679-78252021000800509
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252021000800509
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78256714
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 Associação Brasileira de Ciências Mecânicas
publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
dc.source.none.fl_str_mv Latin American Journal of Solids and Structures v.18 n.8 2021
reponame:Latin American journal of solids and structures (Online)
instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
instname_str Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron_str ABCM
institution ABCM
reponame_str Latin American journal of solids and structures (Online)
collection Latin American journal of solids and structures (Online)
repository.name.fl_str_mv Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv abcm@abcm.org.br||maralves@usp.br
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