Considerations about the determination of γz coefficient

Detalhes bibliográficos
Autor(a) principal: Oliveira,D. M.
Data de Publicação: 2013
Outros Autores: Silva,N. A., Bremer,C. F., Inoue,H.
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=S1983-41952013000100005
Resumo: In this work, the γz coefficient, used to evaluate final second order effects in reinforced concrete structures, is studied. At the start, the influence of the structural model in determination of γz coefficient is evaluated. Next, a comparative analysis of γz and B2 coefficient, usually employed to evaluate second order effects in steel structures, is performed. In order to develop the study, several reinforced concrete buildings of medium height are analysed using ANSYS-9.0 [1] software. The results show that simplified analysis provide more conservative values of γz. It means that, for structures analysed by simplified models, large values of γz don't imply, necessarily, in significant second order effects. Furthermore, it was checked that γz can be determinated from B2 coefficients of each storey of the structures and that, for all the analysed buildings, the average values of the B2 coefficients are similar to γz.
id IBRACON-1_074b3bd2bb85b981124b6318a491ab5c
oai_identifier_str oai:scielo:S1983-41952013000100005
network_acronym_str IBRACON-1
network_name_str Revista IBRACON de Estruturas e Materiais
repository_id_str
spelling Considerations about the determination of γz coefficientreinforced concretestructural modelB2 CoefficientIn this work, the γz coefficient, used to evaluate final second order effects in reinforced concrete structures, is studied. At the start, the influence of the structural model in determination of γz coefficient is evaluated. Next, a comparative analysis of γz and B2 coefficient, usually employed to evaluate second order effects in steel structures, is performed. In order to develop the study, several reinforced concrete buildings of medium height are analysed using ANSYS-9.0 [1] software. The results show that simplified analysis provide more conservative values of γz. It means that, for structures analysed by simplified models, large values of γz don't imply, necessarily, in significant second order effects. Furthermore, it was checked that γz can be determinated from B2 coefficients of each storey of the structures and that, for all the analysed buildings, the average values of the B2 coefficients are similar to γz.IBRACON - Instituto Brasileiro do Concreto2013-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952013000100005Revista IBRACON de Estruturas e Materiais v.6 n.1 2013reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/S1983-41952013000100005info:eu-repo/semantics/openAccessOliveira,D. M.Silva,N. A.Bremer,C. F.Inoue,H.eng2013-02-28T00:00:00Zoai:scielo:S1983-41952013000100005Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2013-02-28T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Considerations about the determination of γz coefficient
title Considerations about the determination of γz coefficient
spellingShingle Considerations about the determination of γz coefficient
Oliveira,D. M.
reinforced concrete
structural model
B2 Coefficient
title_short Considerations about the determination of γz coefficient
title_full Considerations about the determination of γz coefficient
title_fullStr Considerations about the determination of γz coefficient
title_full_unstemmed Considerations about the determination of γz coefficient
title_sort Considerations about the determination of γz coefficient
author Oliveira,D. M.
author_facet Oliveira,D. M.
Silva,N. A.
Bremer,C. F.
Inoue,H.
author_role author
author2 Silva,N. A.
Bremer,C. F.
Inoue,H.
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira,D. M.
Silva,N. A.
Bremer,C. F.
Inoue,H.
dc.subject.por.fl_str_mv reinforced concrete
structural model
B2 Coefficient
topic reinforced concrete
structural model
B2 Coefficient
description In this work, the γz coefficient, used to evaluate final second order effects in reinforced concrete structures, is studied. At the start, the influence of the structural model in determination of γz coefficient is evaluated. Next, a comparative analysis of γz and B2 coefficient, usually employed to evaluate second order effects in steel structures, is performed. In order to develop the study, several reinforced concrete buildings of medium height are analysed using ANSYS-9.0 [1] software. The results show that simplified analysis provide more conservative values of γz. It means that, for structures analysed by simplified models, large values of γz don't imply, necessarily, in significant second order effects. Furthermore, it was checked that γz can be determinated from B2 coefficients of each storey of the structures and that, for all the analysed buildings, the average values of the B2 coefficients are similar to γz.
publishDate 2013
dc.date.none.fl_str_mv 2013-02-01
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=S1983-41952013000100005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952013000100005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1983-41952013000100005
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.6 n.1 2013
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_ 1754193604401692672