Numerical analysis of high-strength concrete columns interconnected by normal-strength concrete floor
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
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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Latin American journal of solids and structures (Online) |
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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 |
_version_ |
1754302890848026624 |