Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/4701 |
Resumo: | The objective of this work was to evaluate the influence of the rigidity of the beam-tocolumn connections as well as the transference of forces among the structural components in steel-concrete composite structures. to do this, data regarding the Moment vs. Rotation curve behavior of a concrete filled beam-to-column connection, previously evaluated on a different work was used for comparison. The experimental value of rigidity was inserted into models of plane frames and tridimensional models, in a way that the global stability parameters can be evaluated according to the rotational stiffness of the beam-to-column connections. In order to evaluate the stability, was led in consideration the ABNT NBR 8800:2008 Brazilian code recommendations. For the numeric simulations, the software SAP 2000® was used, in which it was simulated a plane frame model with ten floors, and also a tridimensional frame, varying the number of floors. Once constructed the numerical models, for the plane frame comparative analysis were performed study of the redistribution of forces, of consumption of steel and stability considering that the beam-to-column connections represented in the models, simulate the following situations regarding the system stiffness: rigid and semi-rigid connections and also ratios of experimental stiffness. For the tridimensional model, besides the variation of the stiffness connection the influence of number of floors on the parameters of stability and distribution of forces on structural elements was also analyzed in the present study. The results showed that the stiffness of the beam-to-connections alters the distribution of forces, and that the variation on the number of floors have influence on the global stability parameter. However, it is possible to design structures with semi-rigid beam-to-column connections respecting the normative limits for the parameters of stability and reducing the consumption of steel in the form of profiles. |
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Pulido, Antonio CarlosNardin, Silvana dehttp://lattes.cnpq.br/5587716781980132http://lattes.cnpq.br/4972734653751014008b7abf-c38e-4990-99f3-b7a0fe02b8532016-06-02T20:09:21Z2014-10-162016-06-02T20:09:21Z2014-06-16PULIDO, Antonio Carlos. Influence of the behavior of connections on the stability of concrete-steel composite structures. 2014. 183 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2014.https://repositorio.ufscar.br/handle/ufscar/4701The objective of this work was to evaluate the influence of the rigidity of the beam-tocolumn connections as well as the transference of forces among the structural components in steel-concrete composite structures. to do this, data regarding the Moment vs. Rotation curve behavior of a concrete filled beam-to-column connection, previously evaluated on a different work was used for comparison. The experimental value of rigidity was inserted into models of plane frames and tridimensional models, in a way that the global stability parameters can be evaluated according to the rotational stiffness of the beam-to-column connections. In order to evaluate the stability, was led in consideration the ABNT NBR 8800:2008 Brazilian code recommendations. For the numeric simulations, the software SAP 2000® was used, in which it was simulated a plane frame model with ten floors, and also a tridimensional frame, varying the number of floors. Once constructed the numerical models, for the plane frame comparative analysis were performed study of the redistribution of forces, of consumption of steel and stability considering that the beam-to-column connections represented in the models, simulate the following situations regarding the system stiffness: rigid and semi-rigid connections and also ratios of experimental stiffness. For the tridimensional model, besides the variation of the stiffness connection the influence of number of floors on the parameters of stability and distribution of forces on structural elements was also analyzed in the present study. The results showed that the stiffness of the beam-to-connections alters the distribution of forces, and that the variation on the number of floors have influence on the global stability parameter. However, it is possible to design structures with semi-rigid beam-to-column connections respecting the normative limits for the parameters of stability and reducing the consumption of steel in the form of profiles.O objetivo deste trabalho é avaliar a influência da rigidez das ligações viga-pilar no comportamento e na transferência de forças entre componentes estruturais de sistemas estruturados em elementos mistos de aço e concreto. Para isso, serão utilizados dados do comportamento Momento vs. Rotação de uma ligação viga-pilar misto preenchido já investigada experimentalmente. Os resultados experimentais de rigidez serão inseridos em modelos de pórticos planos e tridimensionais, de forma que os parâmetros de estabilidade global possam ser avaliados em função da rigidez da ligação viga-pilar. Para o estudo da estabilidade são consideradas as recomendações da norma brasileira de estruturas de aço e mistas ABNT NBR 8800:2008. Para as simulações numéricas foi utilizado o pacote computacional SAP 2000® no qual foi modelado um pórtico plano com dez pavimentos e um pórtico tridimensional, variando-se o número de pavimentos e a rigidez das ligações. Para o pórtico plano foram realizadas análises comparativas da distribuição de esforços, do consumo de aço e da estabilidade considerando que as ligações viga-pilar representadas no modelo simulem as seguintes situações quanto à rigidez: ligações rígida e semirrígida, cuja rigidez foi determinada experimentalmente, além de parcelas desta rigidez experimental. Para os pórticos tridimensionais, além da variação de rigidez, foi analisada a influência do número de pavimentos sobre os parâmetros de estabilidade e distribuição de esforços nos elementos estruturais. Os resultados mostraram que a rigidez das ligações altera a distribuição dos esforços e a variação no número de pavimentos influencia nos parâmetros de estabilidade global. No entanto, é possível conceber estruturas com ligações viga-pilar semirrígidas respeitando os limites normativos para os parâmetros de estabilidade e reduzindo o consumo de aço sob a forma de perfis.application/pdfporUniversidade Federal de São CarlosPrograma de Pós-Graduação em Engenharia Civil - PPGECivUFSCarBRConstrução civilElementos mistos de aço e concretoLigações mistasEstabilidade globalPórticos planosPórticos tridimensionaisAnálise estruturalSteel-concrete composite elementsStructural analysisComposite connectionsSemi-rigid connectionsGobal stabilityPlane frameTridimensional frameENGENHARIAS::ENGENHARIA CIVIL::CONSTRUCAO CIVILInfluência do comportamento das ligações na estabilidade de estruturas mistas de aço e concretoInfluence of the behavior of connections on the stability of concrete-steel composite structuresinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-1-105f3dea9-bafc-49eb-9de0-5b46379155ecinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINAL6242.pdfapplication/pdf8638338https://repositorio.ufscar.br/bitstream/ufscar/4701/1/6242.pdf94fe90943d4b53e78099d6e565e290deMD51TEXT6242.pdf.txt6242.pdf.txtExtracted texttext/plain0https://repositorio.ufscar.br/bitstream/ufscar/4701/2/6242.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD52THUMBNAIL6242.pdf.jpg6242.pdf.jpgIM Thumbnailimage/jpeg7442https://repositorio.ufscar.br/bitstream/ufscar/4701/3/6242.pdf.jpgfcafdc2487c79639b0732385a2d60917MD53ufscar/47012023-09-18 18:31:34.864oai:repositorio.ufscar.br:ufscar/4701Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:31:34Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
dc.title.alternative.eng.fl_str_mv |
Influence of the behavior of connections on the stability of concrete-steel composite structures |
title |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
spellingShingle |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto Pulido, Antonio Carlos Construção civil Elementos mistos de aço e concreto Ligações mistas Estabilidade global Pórticos planos Pórticos tridimensionais Análise estrutural Steel-concrete composite elements Structural analysis Composite connections Semi-rigid connections Gobal stability Plane frame Tridimensional frame ENGENHARIAS::ENGENHARIA CIVIL::CONSTRUCAO CIVIL |
title_short |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
title_full |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
title_fullStr |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
title_full_unstemmed |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
title_sort |
Influência do comportamento das ligações na estabilidade de estruturas mistas de aço e concreto |
author |
Pulido, Antonio Carlos |
author_facet |
Pulido, Antonio Carlos |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/4972734653751014 |
dc.contributor.author.fl_str_mv |
Pulido, Antonio Carlos |
dc.contributor.advisor1.fl_str_mv |
Nardin, Silvana de |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5587716781980132 |
dc.contributor.authorID.fl_str_mv |
008b7abf-c38e-4990-99f3-b7a0fe02b853 |
contributor_str_mv |
Nardin, Silvana de |
dc.subject.por.fl_str_mv |
Construção civil Elementos mistos de aço e concreto Ligações mistas Estabilidade global Pórticos planos Pórticos tridimensionais Análise estrutural |
topic |
Construção civil Elementos mistos de aço e concreto Ligações mistas Estabilidade global Pórticos planos Pórticos tridimensionais Análise estrutural Steel-concrete composite elements Structural analysis Composite connections Semi-rigid connections Gobal stability Plane frame Tridimensional frame ENGENHARIAS::ENGENHARIA CIVIL::CONSTRUCAO CIVIL |
dc.subject.eng.fl_str_mv |
Steel-concrete composite elements Structural analysis Composite connections Semi-rigid connections Gobal stability Plane frame Tridimensional frame |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA CIVIL::CONSTRUCAO CIVIL |
description |
The objective of this work was to evaluate the influence of the rigidity of the beam-tocolumn connections as well as the transference of forces among the structural components in steel-concrete composite structures. to do this, data regarding the Moment vs. Rotation curve behavior of a concrete filled beam-to-column connection, previously evaluated on a different work was used for comparison. The experimental value of rigidity was inserted into models of plane frames and tridimensional models, in a way that the global stability parameters can be evaluated according to the rotational stiffness of the beam-to-column connections. In order to evaluate the stability, was led in consideration the ABNT NBR 8800:2008 Brazilian code recommendations. For the numeric simulations, the software SAP 2000® was used, in which it was simulated a plane frame model with ten floors, and also a tridimensional frame, varying the number of floors. Once constructed the numerical models, for the plane frame comparative analysis were performed study of the redistribution of forces, of consumption of steel and stability considering that the beam-to-column connections represented in the models, simulate the following situations regarding the system stiffness: rigid and semi-rigid connections and also ratios of experimental stiffness. For the tridimensional model, besides the variation of the stiffness connection the influence of number of floors on the parameters of stability and distribution of forces on structural elements was also analyzed in the present study. The results showed that the stiffness of the beam-to-connections alters the distribution of forces, and that the variation on the number of floors have influence on the global stability parameter. However, it is possible to design structures with semi-rigid beam-to-column connections respecting the normative limits for the parameters of stability and reducing the consumption of steel in the form of profiles. |
publishDate |
2014 |
dc.date.available.fl_str_mv |
2014-10-16 2016-06-02T20:09:21Z |
dc.date.issued.fl_str_mv |
2014-06-16 |
dc.date.accessioned.fl_str_mv |
2016-06-02T20:09:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PULIDO, Antonio Carlos. Influence of the behavior of connections on the stability of concrete-steel composite structures. 2014. 183 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2014. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/4701 |
identifier_str_mv |
PULIDO, Antonio Carlos. Influence of the behavior of connections on the stability of concrete-steel composite structures. 2014. 183 f. Dissertação (Mestrado em Ciências Exatas e da Terra) - Universidade Federal de São Carlos, São Carlos, 2014. |
url |
https://repositorio.ufscar.br/handle/ufscar/4701 |
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por |
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openAccess |
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Universidade Federal de São Carlos |
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Programa de Pós-Graduação em Engenharia Civil - PPGECiv |
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UFSCar |
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BR |
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Universidade Federal de São Carlos |
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