Um método híbrido de otimização topológica para estruturas de concreto armado
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFS |
Texto Completo: | https://ri.ufs.br/jspui/handle/riufs/14059 |
Resumo: | This work introduce a new alternative for obtain strut and tie models using the Hybrid Topology Optimization Method, already proposed in the technical literature, being refined here to use polygonal finite elements and to accelerate the solution of the material nonlinearity problem. In this method, concrete is approached as a continuum, using a polygonal bidimensional finite element, and steel bars as truss elements, using a unidimensial finite elemente with two nodes. For a closer representation of reality, an orthotropic constitutive model for concrete was implemented considering different compression and traction stiffness, being one of the advantages of the model.. The hybrid method also limites the final arrangement of steel bars, generating better structures from the constructive point of view, while allowing greater freedom for the shape and angulation of the concrete struts. As a disadvantage the method is more complex, increasing the computational cost, which however has been substantially reduced through the implementation of an algorithm. The results obtained for some domains were very close to the results of other methodologies, but small differences are noted that may be relevant to the final result. Other domains showed results with greater differences, significantly changing the final strut and tie model, presenting a new structural design alternative, |
id |
UFS-2_dee00bb841602d57170f2128eec7d355 |
---|---|
oai_identifier_str |
oai:ufs.br:riufs/14059 |
network_acronym_str |
UFS-2 |
network_name_str |
Repositório Institucional da UFS |
repository_id_str |
|
spelling |
Rodrigues, Paulo Vinicius CostaCanha, Rejane Martins Fernandes2021-04-13T18:17:26Z2021-04-13T18:17:26Z2020-10-21RODRIGUES, Paulo Vinicius Costa. Um método híbrido de otimização topológica para estruturas de concreto armado. 2020. 118 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Sergipe. São Cristóvão, Sergipe, 2020.https://ri.ufs.br/jspui/handle/riufs/14059Autorização para publicação no Repositório da Universidade Federal de Sergipe (RI-UFS), concedida pelo autor.This work introduce a new alternative for obtain strut and tie models using the Hybrid Topology Optimization Method, already proposed in the technical literature, being refined here to use polygonal finite elements and to accelerate the solution of the material nonlinearity problem. In this method, concrete is approached as a continuum, using a polygonal bidimensional finite element, and steel bars as truss elements, using a unidimensial finite elemente with two nodes. For a closer representation of reality, an orthotropic constitutive model for concrete was implemented considering different compression and traction stiffness, being one of the advantages of the model.. The hybrid method also limites the final arrangement of steel bars, generating better structures from the constructive point of view, while allowing greater freedom for the shape and angulation of the concrete struts. As a disadvantage the method is more complex, increasing the computational cost, which however has been substantially reduced through the implementation of an algorithm. The results obtained for some domains were very close to the results of other methodologies, but small differences are noted that may be relevant to the final result. Other domains showed results with greater differences, significantly changing the final strut and tie model, presenting a new structural design alternative,Esse trabalho apresenta uma nova alternativa para a obtenção de Modelos de Bielas e Tirantes para estruturas de Concreto Armado através do Método de Otimização Topológica Híbrida, já proposto na literatura técnica, sendo aqui refinado para utilizar elementos finitos poligonais e acelerar a solução do problema da não linearidade material. Nesse método, o concreto é aproximado como meio contínuo, utilizando elementos finitos bidimensionais poligonais, e as barras de aço como elementos de treliça, utilizando elementos finitos unidimensionais com dois nós. Para uma representação mais próxima da realidade, implementou-se um modelo constitutivo ortotrópico para o concreto, considerando rigidezes distintas para a compressão e tração, sendo uma das vantagens do modelo. O método híbrido também limita a disposição final das barras de aço, gerando estruturas melhores do ponto de vista construtivo, enquanto permite uma maior liberdade para a forma e a angulação das bielas de concreto. Como desvantagem o método é mais complexo, aumentando o custo computacional, que porém foi substancialmente reduzido através da implementação de um procedimento. Os resultados obtidos para alguns domínios se aproximaram bastante dos resultados de outras metodologias, mas pequenas diferenças são notadas que podem ser relevantes para o resultado final. Outros domínios apresentaram resultados com maiores diferenças mudando de forma significativa o modelo de bielas e tirantes final, apresentando, assim, uma nova alternativa de dimensionamento.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESSão Cristóvão, SEporThis work introduce a new alternative for obtain strut and tie models using the Hybrid Topology Optimization Method, already proposed in the technical literature, being refined here to use polygonal finite elements and to accelerate the solution of the material nonlinearity problem. In this method, concrete is approached as a continuum, using a polygonal bidimensional finite element, and steel bars as truss elements, using a unidimensial finite elemente with two nodes. For a closer representation of reality, an orthotropic constitutive model for concrete was implemented considering different compression and traction stiffness, being one of the advantages of the model.. The hybrid method also limites the final arrangement of steel bars, generating better structures from the constructive point of view, while allowing greater freedom for the shape and angulation of the concrete struts. As a disadvantage the method is more complex, increasing the computational cost, which however has been substantially reduced through the implementation of an algorithm. The results obtained for some domains were very close to the results of other methodologies, but small differences are noted that may be relevant to the final result. Other domains showed results with greater differences, significantly changing the final strut and tie model, presenting a new structural design alternative.Engenharia civilConcreto armadoOtimização de topologia híbridaBielasTirantesTechnologyCivil engineeringENGENHARIAS::ENGENHARIA CIVILUm método híbrido de otimização topológica para estruturas de concreto armadoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisPós-Graduação em Engenharia CivilUniversidade Federal de Sergipereponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessORIGINALPAULO_VINICIUS_COSTA_RODRIGUES.pdfPAULO_VINICIUS_COSTA_RODRIGUES.pdfapplication/pdf3096593https://ri.ufs.br/jspui/bitstream/riufs/14059/2/PAULO_VINICIUS_COSTA_RODRIGUES.pdf53ebfc28b4b4c0b45ac7f4a02ca358b0MD52TEXTPAULO_VINICIUS_COSTA_RODRIGUES.pdf.txtPAULO_VINICIUS_COSTA_RODRIGUES.pdf.txtExtracted texttext/plain160441https://ri.ufs.br/jspui/bitstream/riufs/14059/3/PAULO_VINICIUS_COSTA_RODRIGUES.pdf.txt730d91671b8c20b994837ed3f0784a1eMD53THUMBNAILPAULO_VINICIUS_COSTA_RODRIGUES.pdf.jpgPAULO_VINICIUS_COSTA_RODRIGUES.pdf.jpgGenerated Thumbnailimage/jpeg1222https://ri.ufs.br/jspui/bitstream/riufs/14059/4/PAULO_VINICIUS_COSTA_RODRIGUES.pdf.jpg94e1ab3bf77a9bdd30f3a0162e8699f6MD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81475https://ri.ufs.br/jspui/bitstream/riufs/14059/1/license.txt098cbbf65c2c15e1fb2e49c5d306a44cMD51riufs/140592021-04-28 14:42:00.935oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2021-04-28T17:42Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false |
dc.title.pt_BR.fl_str_mv |
Um método híbrido de otimização topológica para estruturas de concreto armado |
title |
Um método híbrido de otimização topológica para estruturas de concreto armado |
spellingShingle |
Um método híbrido de otimização topológica para estruturas de concreto armado Rodrigues, Paulo Vinicius Costa Engenharia civil Concreto armado Otimização de topologia híbrida Bielas Tirantes Technology Civil engineering ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Um método híbrido de otimização topológica para estruturas de concreto armado |
title_full |
Um método híbrido de otimização topológica para estruturas de concreto armado |
title_fullStr |
Um método híbrido de otimização topológica para estruturas de concreto armado |
title_full_unstemmed |
Um método híbrido de otimização topológica para estruturas de concreto armado |
title_sort |
Um método híbrido de otimização topológica para estruturas de concreto armado |
author |
Rodrigues, Paulo Vinicius Costa |
author_facet |
Rodrigues, Paulo Vinicius Costa |
author_role |
author |
dc.contributor.author.fl_str_mv |
Rodrigues, Paulo Vinicius Costa |
dc.contributor.advisor1.fl_str_mv |
Canha, Rejane Martins Fernandes |
contributor_str_mv |
Canha, Rejane Martins Fernandes |
dc.subject.por.fl_str_mv |
Engenharia civil Concreto armado Otimização de topologia híbrida Bielas Tirantes |
topic |
Engenharia civil Concreto armado Otimização de topologia híbrida Bielas Tirantes Technology Civil engineering ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.eng.fl_str_mv |
Technology Civil engineering |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA CIVIL |
description |
This work introduce a new alternative for obtain strut and tie models using the Hybrid Topology Optimization Method, already proposed in the technical literature, being refined here to use polygonal finite elements and to accelerate the solution of the material nonlinearity problem. In this method, concrete is approached as a continuum, using a polygonal bidimensional finite element, and steel bars as truss elements, using a unidimensial finite elemente with two nodes. For a closer representation of reality, an orthotropic constitutive model for concrete was implemented considering different compression and traction stiffness, being one of the advantages of the model.. The hybrid method also limites the final arrangement of steel bars, generating better structures from the constructive point of view, while allowing greater freedom for the shape and angulation of the concrete struts. As a disadvantage the method is more complex, increasing the computational cost, which however has been substantially reduced through the implementation of an algorithm. The results obtained for some domains were very close to the results of other methodologies, but small differences are noted that may be relevant to the final result. Other domains showed results with greater differences, significantly changing the final strut and tie model, presenting a new structural design alternative, |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020-10-21 |
dc.date.accessioned.fl_str_mv |
2021-04-13T18:17:26Z |
dc.date.available.fl_str_mv |
2021-04-13T18:17:26Z |
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 |
RODRIGUES, Paulo Vinicius Costa. Um método híbrido de otimização topológica para estruturas de concreto armado. 2020. 118 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Sergipe. São Cristóvão, Sergipe, 2020. |
dc.identifier.uri.fl_str_mv |
https://ri.ufs.br/jspui/handle/riufs/14059 |
dc.identifier.license.pt_BR.fl_str_mv |
Autorização para publicação no Repositório da Universidade Federal de Sergipe (RI-UFS), concedida pelo autor. |
identifier_str_mv |
RODRIGUES, Paulo Vinicius Costa. Um método híbrido de otimização topológica para estruturas de concreto armado. 2020. 118 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Sergipe. São Cristóvão, Sergipe, 2020. Autorização para publicação no Repositório da Universidade Federal de Sergipe (RI-UFS), concedida pelo autor. |
url |
https://ri.ufs.br/jspui/handle/riufs/14059 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.pt_BR.fl_str_mv |
This work introduce a new alternative for obtain strut and tie models using the Hybrid Topology Optimization Method, already proposed in the technical literature, being refined here to use polygonal finite elements and to accelerate the solution of the material nonlinearity problem. In this method, concrete is approached as a continuum, using a polygonal bidimensional finite element, and steel bars as truss elements, using a unidimensial finite elemente with two nodes. For a closer representation of reality, an orthotropic constitutive model for concrete was implemented considering different compression and traction stiffness, being one of the advantages of the model.. The hybrid method also limites the final arrangement of steel bars, generating better structures from the constructive point of view, while allowing greater freedom for the shape and angulation of the concrete struts. As a disadvantage the method is more complex, increasing the computational cost, which however has been substantially reduced through the implementation of an algorithm. The results obtained for some domains were very close to the results of other methodologies, but small differences are noted that may be relevant to the final result. Other domains showed results with greater differences, significantly changing the final strut and tie model, presenting a new structural design alternative. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.program.fl_str_mv |
Pós-Graduação em Engenharia Civil |
dc.publisher.initials.fl_str_mv |
Universidade Federal de Sergipe |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFS instname:Universidade Federal de Sergipe (UFS) instacron:UFS |
instname_str |
Universidade Federal de Sergipe (UFS) |
instacron_str |
UFS |
institution |
UFS |
reponame_str |
Repositório Institucional da UFS |
collection |
Repositório Institucional da UFS |
bitstream.url.fl_str_mv |
https://ri.ufs.br/jspui/bitstream/riufs/14059/2/PAULO_VINICIUS_COSTA_RODRIGUES.pdf https://ri.ufs.br/jspui/bitstream/riufs/14059/3/PAULO_VINICIUS_COSTA_RODRIGUES.pdf.txt https://ri.ufs.br/jspui/bitstream/riufs/14059/4/PAULO_VINICIUS_COSTA_RODRIGUES.pdf.jpg https://ri.ufs.br/jspui/bitstream/riufs/14059/1/license.txt |
bitstream.checksum.fl_str_mv |
53ebfc28b4b4c0b45ac7f4a02ca358b0 730d91671b8c20b994837ed3f0784a1e 94e1ab3bf77a9bdd30f3a0162e8699f6 098cbbf65c2c15e1fb2e49c5d306a44c |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS) |
repository.mail.fl_str_mv |
repositorio@academico.ufs.br |
_version_ |
1802110811530854400 |