Inelastic second-order analysis of steel columns under minor-axis bending
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | REM - International Engineering Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000400405 |
Resumo: | Abstract The inelastic second-order behavior of steel structural columns under minor-axis bending is presented in this article. To study this behavior, a nonlinear frame element formulation is adopted in which the steel's plasticity process is accompanied at the nodal points of each finite element through the refined plastic-hinge method (RPHM). A tangent modulus approach is employed in order to consider the stiffness degradation in function of the internal forces' variation, and the second-order effects, residual stresses and geometric imperfections are considered in the modeling of column behavior. As a criterium for defining the ultimate limit state of the column cross-section, strength surfaces are adopted. These surfaces describe the interaction between the axial force and bending moment (N-M interaction diagrams). To solve the nonlinear equilibrium equation for the structural system, the Newton-Raphson method is used, coupled with continuation strategies. Columns with different slenderness, boundary and loading conditions are analyzed, and the results obtained are comparable to those found by other researchers. The results lead to the conclusion that the numerical approach adopted in this study can be used for a better behavioral understanding of the steel column under weak-axis bending. |
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REM - International Engineering Journal |
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spelling |
Inelastic second-order analysis of steel columns under minor-axis bendingSteel columnsinelastic second-order analysisminor-axis bendingfinite element methodrefined plastic-hinge methodAbstract The inelastic second-order behavior of steel structural columns under minor-axis bending is presented in this article. To study this behavior, a nonlinear frame element formulation is adopted in which the steel's plasticity process is accompanied at the nodal points of each finite element through the refined plastic-hinge method (RPHM). A tangent modulus approach is employed in order to consider the stiffness degradation in function of the internal forces' variation, and the second-order effects, residual stresses and geometric imperfections are considered in the modeling of column behavior. As a criterium for defining the ultimate limit state of the column cross-section, strength surfaces are adopted. These surfaces describe the interaction between the axial force and bending moment (N-M interaction diagrams). To solve the nonlinear equilibrium equation for the structural system, the Newton-Raphson method is used, coupled with continuation strategies. Columns with different slenderness, boundary and loading conditions are analyzed, and the results obtained are comparable to those found by other researchers. The results lead to the conclusion that the numerical approach adopted in this study can be used for a better behavioral understanding of the steel column under weak-axis bending.Fundação Gorceix2019-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000400405REM - International Engineering Journal v.72 n.3 2019reponame:REM - International Engineering Journalinstname:Fundação Gorceix (FG)instacron:FG10.1590/0370-44672018720046info:eu-repo/semantics/openAccessGonçalves,Gilney AfonsoSilveira,Ricardo Azoubel da MotaSilva,Andréa Regina Dias daSilva,Jéssica Lorranyeng2019-06-17T00:00:00Zoai:scielo:S2448-167X2019000400405Revistahttps://www.rem.com.br/?lang=pt-brPRIhttps://old.scielo.br/oai/scielo-oai.php||editor@rem.com.br2448-167X2448-167Xopendoar:2019-06-17T00:00REM - International Engineering Journal - Fundação Gorceix (FG)false |
dc.title.none.fl_str_mv |
Inelastic second-order analysis of steel columns under minor-axis bending |
title |
Inelastic second-order analysis of steel columns under minor-axis bending |
spellingShingle |
Inelastic second-order analysis of steel columns under minor-axis bending Gonçalves,Gilney Afonso Steel columns inelastic second-order analysis minor-axis bending finite element method refined plastic-hinge method |
title_short |
Inelastic second-order analysis of steel columns under minor-axis bending |
title_full |
Inelastic second-order analysis of steel columns under minor-axis bending |
title_fullStr |
Inelastic second-order analysis of steel columns under minor-axis bending |
title_full_unstemmed |
Inelastic second-order analysis of steel columns under minor-axis bending |
title_sort |
Inelastic second-order analysis of steel columns under minor-axis bending |
author |
Gonçalves,Gilney Afonso |
author_facet |
Gonçalves,Gilney Afonso Silveira,Ricardo Azoubel da Mota Silva,Andréa Regina Dias da Silva,Jéssica Lorrany |
author_role |
author |
author2 |
Silveira,Ricardo Azoubel da Mota Silva,Andréa Regina Dias da Silva,Jéssica Lorrany |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gonçalves,Gilney Afonso Silveira,Ricardo Azoubel da Mota Silva,Andréa Regina Dias da Silva,Jéssica Lorrany |
dc.subject.por.fl_str_mv |
Steel columns inelastic second-order analysis minor-axis bending finite element method refined plastic-hinge method |
topic |
Steel columns inelastic second-order analysis minor-axis bending finite element method refined plastic-hinge method |
description |
Abstract The inelastic second-order behavior of steel structural columns under minor-axis bending is presented in this article. To study this behavior, a nonlinear frame element formulation is adopted in which the steel's plasticity process is accompanied at the nodal points of each finite element through the refined plastic-hinge method (RPHM). A tangent modulus approach is employed in order to consider the stiffness degradation in function of the internal forces' variation, and the second-order effects, residual stresses and geometric imperfections are considered in the modeling of column behavior. As a criterium for defining the ultimate limit state of the column cross-section, strength surfaces are adopted. These surfaces describe the interaction between the axial force and bending moment (N-M interaction diagrams). To solve the nonlinear equilibrium equation for the structural system, the Newton-Raphson method is used, coupled with continuation strategies. Columns with different slenderness, boundary and loading conditions are analyzed, and the results obtained are comparable to those found by other researchers. The results lead to the conclusion that the numerical approach adopted in this study can be used for a better behavioral understanding of the steel column under weak-axis bending. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09-01 |
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=S2448-167X2019000400405 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000400405 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0370-44672018720046 |
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 |
Fundação Gorceix |
publisher.none.fl_str_mv |
Fundação Gorceix |
dc.source.none.fl_str_mv |
REM - International Engineering Journal v.72 n.3 2019 reponame:REM - International Engineering Journal instname:Fundação Gorceix (FG) instacron:FG |
instname_str |
Fundação Gorceix (FG) |
instacron_str |
FG |
institution |
FG |
reponame_str |
REM - International Engineering Journal |
collection |
REM - International Engineering Journal |
repository.name.fl_str_mv |
REM - International Engineering Journal - Fundação Gorceix (FG) |
repository.mail.fl_str_mv |
||editor@rem.com.br |
_version_ |
1754734691387179008 |