Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/20157 |
Resumo: | This work reports the results of a numerical investigation concerning the elastic post-buckling behaviour offixed-endedthin-walledlipped channelcolumnsaffected bydistortional-global(D-G)interaction. The columns analysed (i) exhibit cross-section dimensions and lengths ensuring simultaneous distortional and global critical buckling loads, and (ii) contain critical-mode initial geometrical imperfections (linear combinations of D and G buckling modes). For comparison and clarification purposes, the post-buckling behaviour ofcolumnsbucklinginan“isolated” distortional mode and containing “pure” distortional and global (flexural-torsional) initial geometrical imperfections are also analysed. The results presented and discussed are obtained through geometrically non-linear Generalised Beam Theory (GBT) analyses and provide the evolution, along given equilibrium paths, of the column deformed configuration (expressed in GBT modal form),relevantdisplacementprofiles and modal participation diagrams, making it possible to acquire in-depth knowledge on the column D-G interaction mechanics. Finally, particular attention is paid to interpreting the differences exhibited by the several aforementioned column post-buckling behaviours. |
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Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel ColumnsFixed-ended lipped channel columns; Distortional-Global interaction; Generalized Beam Theory (GBT);Geometrically non-linear imperfect analysis (GNIA).This work reports the results of a numerical investigation concerning the elastic post-buckling behaviour offixed-endedthin-walledlipped channelcolumnsaffected bydistortional-global(D-G)interaction. The columns analysed (i) exhibit cross-section dimensions and lengths ensuring simultaneous distortional and global critical buckling loads, and (ii) contain critical-mode initial geometrical imperfections (linear combinations of D and G buckling modes). For comparison and clarification purposes, the post-buckling behaviour ofcolumnsbucklinginan“isolated” distortional mode and containing “pure” distortional and global (flexural-torsional) initial geometrical imperfections are also analysed. The results presented and discussed are obtained through geometrically non-linear Generalised Beam Theory (GBT) analyses and provide the evolution, along given equilibrium paths, of the column deformed configuration (expressed in GBT modal form),relevantdisplacementprofiles and modal participation diagrams, making it possible to acquire in-depth knowledge on the column D-G interaction mechanics. Finally, particular attention is paid to interpreting the differences exhibited by the several aforementioned column post-buckling behaviours.Department of Civil Engineering, Honk-Kong UniversityRUNMartins, AndréCamotim, DinarGonçalves, RodrigoDinis, Pedro2017-03-02T14:58:46Z2016-122016-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/20157enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:02:43Zoai:run.unl.pt:10362/20157Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:25:50.115366Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
title |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
spellingShingle |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns Martins, André Fixed-ended lipped channel columns; Distortional-Global interaction; Generalized Beam Theory (GBT);Geometrically non-linear imperfect analysis (GNIA). |
title_short |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
title_full |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
title_fullStr |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
title_full_unstemmed |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
title_sort |
Mechanics of Distortional-Global Interaction in Fixed-Ended Lipped Channel Columns |
author |
Martins, André |
author_facet |
Martins, André Camotim, Dinar Gonçalves, Rodrigo Dinis, Pedro |
author_role |
author |
author2 |
Camotim, Dinar Gonçalves, Rodrigo Dinis, Pedro |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
RUN |
dc.contributor.author.fl_str_mv |
Martins, André Camotim, Dinar Gonçalves, Rodrigo Dinis, Pedro |
dc.subject.por.fl_str_mv |
Fixed-ended lipped channel columns; Distortional-Global interaction; Generalized Beam Theory (GBT);Geometrically non-linear imperfect analysis (GNIA). |
topic |
Fixed-ended lipped channel columns; Distortional-Global interaction; Generalized Beam Theory (GBT);Geometrically non-linear imperfect analysis (GNIA). |
description |
This work reports the results of a numerical investigation concerning the elastic post-buckling behaviour offixed-endedthin-walledlipped channelcolumnsaffected bydistortional-global(D-G)interaction. The columns analysed (i) exhibit cross-section dimensions and lengths ensuring simultaneous distortional and global critical buckling loads, and (ii) contain critical-mode initial geometrical imperfections (linear combinations of D and G buckling modes). For comparison and clarification purposes, the post-buckling behaviour ofcolumnsbucklinginan“isolated” distortional mode and containing “pure” distortional and global (flexural-torsional) initial geometrical imperfections are also analysed. The results presented and discussed are obtained through geometrically non-linear Generalised Beam Theory (GBT) analyses and provide the evolution, along given equilibrium paths, of the column deformed configuration (expressed in GBT modal form),relevantdisplacementprofiles and modal participation diagrams, making it possible to acquire in-depth knowledge on the column D-G interaction mechanics. Finally, particular attention is paid to interpreting the differences exhibited by the several aforementioned column post-buckling behaviours. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12 2016-12-01T00:00:00Z 2017-03-02T14:58:46Z |
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.uri.fl_str_mv |
http://hdl.handle.net/10362/20157 |
url |
http://hdl.handle.net/10362/20157 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Department of Civil Engineering, Honk-Kong University |
publisher.none.fl_str_mv |
Department of Civil Engineering, Honk-Kong University |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137889342193664 |