A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions

Detalhes bibliográficos
Autor(a) principal: Machado, Luísa Rossini
Data de Publicação: 2020
Outros Autores: Pasa Dutra, Vanessa Fátima, Maghous, Samir
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/210471
Resumo: The present study investigates the stability conditions of reinforced concrete panels subjected to fire loading within the framework of limit analysis theory. The method relies in a first step upon the preliminary determination of the temperature dependent interaction diagrams of the structural element. Interaction diagrams derived from the static approach are shown to depend on the geometry of panel cross-section as well as on the strength properties of the constituents, which degrade continuously as fire proceeds. The second step of the method consists in determining the deformed configuration of panel from the analysis of thermo-elastic equilibrium of the structure. The stability analysis and design of the panel in its deformed geometry are then carried out by comparing the distribution of internal efforts to its reduced strength capacities expressed by means of the associated interaction diagrams evaluated in the first step. Several numerical examples are presented to assess the effect of relevant parameters on the overall fire safety of the structure, emphasizing the effectiveness of the approach for design purposes.
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spelling Machado, Luísa RossiniPasa Dutra, Vanessa FátimaMaghous, Samir2020-06-20T03:41:14Z20201679-7825http://hdl.handle.net/10183/210471001111524The present study investigates the stability conditions of reinforced concrete panels subjected to fire loading within the framework of limit analysis theory. The method relies in a first step upon the preliminary determination of the temperature dependent interaction diagrams of the structural element. Interaction diagrams derived from the static approach are shown to depend on the geometry of panel cross-section as well as on the strength properties of the constituents, which degrade continuously as fire proceeds. The second step of the method consists in determining the deformed configuration of panel from the analysis of thermo-elastic equilibrium of the structure. The stability analysis and design of the panel in its deformed geometry are then carried out by comparing the distribution of internal efforts to its reduced strength capacities expressed by means of the associated interaction diagrams evaluated in the first step. Several numerical examples are presented to assess the effect of relevant parameters on the overall fire safety of the structure, emphasizing the effectiveness of the approach for design purposes.application/pdfengLatin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 17, no. 1 (2020), Art. e247, 27 p.Concreto armadoAltas temperaturasAnálise limiteAnálise térmicaReinforced concrete panelFire loadingFire stabilityLimit analysis theoryA limit analysis approach to the stability assessment of reinforced concrete panels in fire conditionsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001111524.pdf.txt001111524.pdf.txtExtracted Texttext/plain69663http://www.lume.ufrgs.br/bitstream/10183/210471/2/001111524.pdf.txt10b173eaa3ccc498e313fa407bc20126MD52ORIGINAL001111524.pdfTexto completo (inglês)application/pdf2183844http://www.lume.ufrgs.br/bitstream/10183/210471/1/001111524.pdf7dbdd17e4072ec35a4a22f066c50b4c2MD5110183/2104712020-11-20 05:15:47.136208oai:www.lume.ufrgs.br:10183/210471Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2020-11-20T07:15:47Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
title A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
spellingShingle A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
Machado, Luísa Rossini
Concreto armado
Altas temperaturas
Análise limite
Análise térmica
Reinforced concrete panel
Fire loading
Fire stability
Limit analysis theory
title_short A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
title_full A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
title_fullStr A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
title_full_unstemmed A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
title_sort A limit analysis approach to the stability assessment of reinforced concrete panels in fire conditions
author Machado, Luísa Rossini
author_facet Machado, Luísa Rossini
Pasa Dutra, Vanessa Fátima
Maghous, Samir
author_role author
author2 Pasa Dutra, Vanessa Fátima
Maghous, Samir
author2_role author
author
dc.contributor.author.fl_str_mv Machado, Luísa Rossini
Pasa Dutra, Vanessa Fátima
Maghous, Samir
dc.subject.por.fl_str_mv Concreto armado
Altas temperaturas
Análise limite
Análise térmica
topic Concreto armado
Altas temperaturas
Análise limite
Análise térmica
Reinforced concrete panel
Fire loading
Fire stability
Limit analysis theory
dc.subject.eng.fl_str_mv Reinforced concrete panel
Fire loading
Fire stability
Limit analysis theory
description The present study investigates the stability conditions of reinforced concrete panels subjected to fire loading within the framework of limit analysis theory. The method relies in a first step upon the preliminary determination of the temperature dependent interaction diagrams of the structural element. Interaction diagrams derived from the static approach are shown to depend on the geometry of panel cross-section as well as on the strength properties of the constituents, which degrade continuously as fire proceeds. The second step of the method consists in determining the deformed configuration of panel from the analysis of thermo-elastic equilibrium of the structure. The stability analysis and design of the panel in its deformed geometry are then carried out by comparing the distribution of internal efforts to its reduced strength capacities expressed by means of the associated interaction diagrams evaluated in the first step. Several numerical examples are presented to assess the effect of relevant parameters on the overall fire safety of the structure, emphasizing the effectiveness of the approach for design purposes.
publishDate 2020
dc.date.accessioned.fl_str_mv 2020-06-20T03:41:14Z
dc.date.issued.fl_str_mv 2020
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/210471
dc.identifier.issn.pt_BR.fl_str_mv 1679-7825
dc.identifier.nrb.pt_BR.fl_str_mv 001111524
identifier_str_mv 1679-7825
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url http://hdl.handle.net/10183/210471
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Latin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 17, no. 1 (2020), Art. e247, 27 p.
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.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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