Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames

This paper focuses on the development of beam-column flexural stiffness reduction factor (tMN) applicable to the in-plane stability design of stainless steel beam-columns and frames with compact cold-formed square and rectangular hollow sections. The proposed tMN accounts for the deleterious influen...

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Autores: Shen, Yanfei, Chacón Flores, Rolando Antonio|||0000-0002-7259-5635
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/175863
Acceso en línea:https://hdl.handle.net/2117/175863
https://dx.doi.org/10.1016/j.tws.2019.106581
Access Level:acceso abierto
Palabra clave:Stainless steel
Geometrically non-linear analysis
Stiffness reduction
Second order effects
Stability
Acer inoxidable -- Estructures
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques
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oai_identifier_str oai:upcommons.upc.edu:2117/175863
network_acronym_str ES
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repository_id_str
spelling Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar framesShen, YanfeiChacón Flores, Rolando Antonio|||0000-0002-7259-5635Stainless steelGeometrically non-linear analysisStiffness reductionSecond order effectsStabilityStainless steelAcer inoxidable -- EstructuresÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liquesThis paper focuses on the development of beam-column flexural stiffness reduction factor (tMN) applicable to the in-plane stability design of stainless steel beam-columns and frames with compact cold-formed square and rectangular hollow sections. The proposed tMN accounts for the deleterious influence of material non-linearity, residual stresses and member out-of-straightness. The use of a Geometrically Non-linear Analysis (GNA) with the proposed tMN eliminates the need for member buckling strength checks and thus, only cross-sectional strength checks are required. The proposed approach, aligned to AISC standards, is aimed at facilitating greater and more efficient use of stainless steel. Two types of tMN are proposed: analytical and approximate. The analytical tMN presumes knowing the maximum internal second order moment (Mr2) within a member. It is developed by means of extending the formulations for evaluating the elastic second order effects to the inelastic range. The accuracy of the analytical tMN is verified for beam-columns and sub-assemblages. Since in practical design Mr2 is not known in advance, an approximate expression of tMN, which is more likely to be used relative to the analytical tMN, is proposed by fitting variables to the analytically determined MN. The accuracy of the approximate tMN is verified for frames with different geometrical and loading configurations. Furthermore, the proposed approach is compared against the Direct Analysis Method (DM). Results show that, compared to the DM, GNA coupled with the approximate tMN provides improved estimations, since the proposed tMN can more accurately capture stiffness reduction resulted from material non-linearity and well capture additional second order effects due to material non-linearityPeer Reviewed20202020-03-0120202020-01-28journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/175863https://dx.doi.org/10.1016/j.tws.2019.106581reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1758632026-05-27T15:37:01Z
dc.title.none.fl_str_mv Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
title Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
spellingShingle Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
Shen, Yanfei
Stainless steel
Geometrically non-linear analysis
Stiffness reduction
Second order effects
Stability
Stainless steel
Acer inoxidable -- Estructures
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques
title_short Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
title_full Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
title_fullStr Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
title_full_unstemmed Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
title_sort Geometrically non-linear analysis with stiffness reduction for the stability design of stainless steel structures: application to members and planar frames
dc.creator.none.fl_str_mv Shen, Yanfei
Chacón Flores, Rolando Antonio|||0000-0002-7259-5635
author Shen, Yanfei
author_facet Shen, Yanfei
Chacón Flores, Rolando Antonio|||0000-0002-7259-5635
author_role author
author2 Chacón Flores, Rolando Antonio|||0000-0002-7259-5635
author2_role author
dc.subject.none.fl_str_mv Stainless steel
Geometrically non-linear analysis
Stiffness reduction
Second order effects
Stability
Stainless steel
Acer inoxidable -- Estructures
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques
topic Stainless steel
Geometrically non-linear analysis
Stiffness reduction
Second order effects
Stability
Stainless steel
Acer inoxidable -- Estructures
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques
description This paper focuses on the development of beam-column flexural stiffness reduction factor (tMN) applicable to the in-plane stability design of stainless steel beam-columns and frames with compact cold-formed square and rectangular hollow sections. The proposed tMN accounts for the deleterious influence of material non-linearity, residual stresses and member out-of-straightness. The use of a Geometrically Non-linear Analysis (GNA) with the proposed tMN eliminates the need for member buckling strength checks and thus, only cross-sectional strength checks are required. The proposed approach, aligned to AISC standards, is aimed at facilitating greater and more efficient use of stainless steel. Two types of tMN are proposed: analytical and approximate. The analytical tMN presumes knowing the maximum internal second order moment (Mr2) within a member. It is developed by means of extending the formulations for evaluating the elastic second order effects to the inelastic range. The accuracy of the analytical tMN is verified for beam-columns and sub-assemblages. Since in practical design Mr2 is not known in advance, an approximate expression of tMN, which is more likely to be used relative to the analytical tMN, is proposed by fitting variables to the analytically determined MN. The accuracy of the approximate tMN is verified for frames with different geometrical and loading configurations. Furthermore, the proposed approach is compared against the Direct Analysis Method (DM). Results show that, compared to the DM, GNA coupled with the approximate tMN provides improved estimations, since the proposed tMN can more accurately capture stiffness reduction resulted from material non-linearity and well capture additional second order effects due to material non-linearity
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-03-01
2020
2020-01-28
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/175863
https://dx.doi.org/10.1016/j.tws.2019.106581
url https://hdl.handle.net/2117/175863
https://dx.doi.org/10.1016/j.tws.2019.106581
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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