Fresh concrete consistency effect on thin-walled columns creep phenomenon
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/30390 |
Resumo: | A concrete structural member when kept under sustained load presents progressive strains over time, associated to the material creep. The fresh concrete consistency, specially, exerts some effect on that phenomenon. The pioneering formulations developed to modelling the creep of concrete are applicable, directly, to the cases for which the stress magnitude remains constant. Its application to reinforced concrete structural members, that exhibits changes in the magnitude of the stresses over such a time dependent phenomenon, requires simplifications from which result the memory models, whose implementation presents the disadvantage of involving the history of the stresses storage. The State Models were developed to overcome these difficulties, as they result of integral calculus scheme improvement, dispensing such computational memory storage. The subject of this work is the analysis of creep strains on reinforced concrete thin-walled columns, emphasizing the fresh concrete consistency efecct, on the base of a state model, fixing the values of its physical parameters from the NBR 6118/14 proceedings [1]. The obtained results showed the occurrence of stresses transfer from the mass of the concrete to the reinforcement steel bars, that was more pronounced in those cases for which the slump test abatement were the highest and, in some cases, including, it induced the material yielding condition |
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Madureira, Edmilson LiraMelo, Luane Assunção Paiva2020-10-13T14:55:25Z2020-10-13T14:55:25Z2018MADUREIRA, E. L.; MELO, L.A.P.. Fresh Concrete Consistency Effect on Thin-Walled Columns Creep Phenomenon. Revista IBRACON de Estruturas e Materiais, v. 11, p. 644-651, 2018. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000300644. Acesso em: 06 out. 2020 http://dx.doi.org/10.1590/S1983-419520180003000121983-4195https://repositorio.ufrn.br/handle/123456789/3039010.1590/s1983-41952018000300012Revista IBRACON de Estruturas e MateriaisAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessReinforced concreteThin-walled-columnCreepModellingFresh concrete consistency effect on thin-walled columns creep phenomenonEfeito da consistência do concreto fresco sobre o fenômeno de fluência em pilares paredeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleA concrete structural member when kept under sustained load presents progressive strains over time, associated to the material creep. The fresh concrete consistency, specially, exerts some effect on that phenomenon. The pioneering formulations developed to modelling the creep of concrete are applicable, directly, to the cases for which the stress magnitude remains constant. Its application to reinforced concrete structural members, that exhibits changes in the magnitude of the stresses over such a time dependent phenomenon, requires simplifications from which result the memory models, whose implementation presents the disadvantage of involving the history of the stresses storage. The State Models were developed to overcome these difficulties, as they result of integral calculus scheme improvement, dispensing such computational memory storage. The subject of this work is the analysis of creep strains on reinforced concrete thin-walled columns, emphasizing the fresh concrete consistency efecct, on the base of a state model, fixing the values of its physical parameters from the NBR 6118/14 proceedings [1]. The obtained results showed the occurrence of stresses transfer from the mass of the concrete to the reinforcement steel bars, that was more pronounced in those cases for which the slump test abatement were the highest and, in some cases, including, it induced the material yielding conditionengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/30390/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30390/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53ORIGINALFreshConcreteConsistencyEffect_Madureira_2018.pdfFreshConcreteConsistencyEffect_Madureira_2018.pdfapplication/pdf1380273https://repositorio.ufrn.br/bitstream/123456789/30390/1/FreshConcreteConsistencyEffect_Madureira_2018.pdfe865f804ae29a8ace52fa5c949920d1cMD51TEXTFreshConcreteConsistencyEffect_Madureira_2018.pdf.txtFreshConcreteConsistencyEffect_Madureira_2018.pdf.txtExtracted texttext/plain26106https://repositorio.ufrn.br/bitstream/123456789/30390/4/FreshConcreteConsistencyEffect_Madureira_2018.pdf.txtb1831e478459f05e980181892f300e74MD54THUMBNAILFreshConcreteConsistencyEffect_Madureira_2018.pdf.jpgFreshConcreteConsistencyEffect_Madureira_2018.pdf.jpgGenerated Thumbnailimage/jpeg1662https://repositorio.ufrn.br/bitstream/123456789/30390/5/FreshConcreteConsistencyEffect_Madureira_2018.pdf.jpg358aeedd0befd803c4ef34d32a6a8a59MD55123456789/303902020-10-18 04:54:00.832oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-10-18T07:54Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
dc.title.alternative.pt_BR.fl_str_mv |
Efeito da consistência do concreto fresco sobre o fenômeno de fluência em pilares parede |
title |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
spellingShingle |
Fresh concrete consistency effect on thin-walled columns creep phenomenon Madureira, Edmilson Lira Reinforced concrete Thin-walled-column Creep Modelling |
title_short |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
title_full |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
title_fullStr |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
title_full_unstemmed |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
title_sort |
Fresh concrete consistency effect on thin-walled columns creep phenomenon |
author |
Madureira, Edmilson Lira |
author_facet |
Madureira, Edmilson Lira Melo, Luane Assunção Paiva |
author_role |
author |
author2 |
Melo, Luane Assunção Paiva |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Madureira, Edmilson Lira Melo, Luane Assunção Paiva |
dc.subject.por.fl_str_mv |
Reinforced concrete Thin-walled-column Creep Modelling |
topic |
Reinforced concrete Thin-walled-column Creep Modelling |
description |
A concrete structural member when kept under sustained load presents progressive strains over time, associated to the material creep. The fresh concrete consistency, specially, exerts some effect on that phenomenon. The pioneering formulations developed to modelling the creep of concrete are applicable, directly, to the cases for which the stress magnitude remains constant. Its application to reinforced concrete structural members, that exhibits changes in the magnitude of the stresses over such a time dependent phenomenon, requires simplifications from which result the memory models, whose implementation presents the disadvantage of involving the history of the stresses storage. The State Models were developed to overcome these difficulties, as they result of integral calculus scheme improvement, dispensing such computational memory storage. The subject of this work is the analysis of creep strains on reinforced concrete thin-walled columns, emphasizing the fresh concrete consistency efecct, on the base of a state model, fixing the values of its physical parameters from the NBR 6118/14 proceedings [1]. The obtained results showed the occurrence of stresses transfer from the mass of the concrete to the reinforcement steel bars, that was more pronounced in those cases for which the slump test abatement were the highest and, in some cases, including, it induced the material yielding condition |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2020-10-13T14:55:25Z |
dc.date.available.fl_str_mv |
2020-10-13T14:55:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MADUREIRA, E. L.; MELO, L.A.P.. Fresh Concrete Consistency Effect on Thin-Walled Columns Creep Phenomenon. Revista IBRACON de Estruturas e Materiais, v. 11, p. 644-651, 2018. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000300644. Acesso em: 06 out. 2020 http://dx.doi.org/10.1590/S1983-41952018000300012 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/30390 |
dc.identifier.issn.none.fl_str_mv |
1983-4195 |
dc.identifier.doi.none.fl_str_mv |
10.1590/s1983-41952018000300012 |
identifier_str_mv |
MADUREIRA, E. L.; MELO, L.A.P.. Fresh Concrete Consistency Effect on Thin-Walled Columns Creep Phenomenon. Revista IBRACON de Estruturas e Materiais, v. 11, p. 644-651, 2018. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000300644. Acesso em: 06 out. 2020 http://dx.doi.org/10.1590/S1983-41952018000300012 1983-4195 10.1590/s1983-41952018000300012 |
url |
https://repositorio.ufrn.br/handle/123456789/30390 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Revista IBRACON de Estruturas e Materiais |
publisher.none.fl_str_mv |
Revista IBRACON de Estruturas e Materiais |
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