Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto)
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UERJ |
Texto Completo: | http://www.bdtd.uerj.br/handle/1/11529 |
Resumo: | The structural engineers experience and knowledge allied by the use newly developed materials and technologies have produced steel and composite (steel-concrete) footbridges with daring structures. This fact have generated very slender structural footbridges and consequently changed the serviceability and ultimate limit states associated to their design. A direct consequence of this design trend is a considerable increase of structural vibrations. Therefore, the present investigation was carried out based on a more realistic load model developed to incorporate the dynamic effects induced by people walking. The load model considered the ascent and descending movement of the human body effective mass at each step. The position of the dynamic load was also changed according to the individual position and the generated time function, having a space and time description. The effect of the human heel was also incorporated in the analysis. The investigated structural model was based on a tubular composite (steel-concrete) footbridge, spanning 82.5 m. The structure is composed by three spans (32.5 m, 17.5 m and 20.0 m, respectively) and two overhangs (7.5 m and 5.0 m, respectively). The structural system is constituted by tubular steel sections and a concrete slab and is currently used for pedestrian crossing. This investigation is carried out based on correlations between the experimental results related to the footbridge dynamic response and those obtained with finite element models. The proposed computational model adopted the usual mesh refinement techniques present in finite element method simulations. The finite element model has been developed and validated with the experimental results. This model enabled a complete dynamic evaluation of the investigated tubular footbridge especially in terms of human comfort and its associated vibration serviceability limit states. The system dynamic response, in terms of peak accelerations, was obtained and compared to the limiting values proposed by several authors and design standards. The peak accelerations found in the present analysis indicated that the investigated tubular footbridge presented problems related with human comfort. Hence it was detected that this type of structure can reach high vibration levels that can compromise the footbridge user s comfort and especially its safety. |
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Silva, José Guilherme Santos dahttp://lattes.cnpq.br/4422797300106230Sieira, Ana Cristina Castro Fontenlahttp://lattes.cnpq.br/8653261732041736Vellasco, Pedro Colmar Gonçalves da Silvahttp://lattes.cnpq.br/2438486171976888Soeiro, Francisco José da Cunha Pireshttp://lattes.cnpq.br/8690926504635230Varela, Wendell Dinizhttp://lattes.cnpq.br/9860915673031541Figueiredo, Fábio Pereirahttp://lattes.cnpq.br/1345504776191391http://lattes.cnpq.br/1610243215800319Debona, Gilvan Lunz2021-01-06T19:00:56Z2012-03-072011-12-09DEBONA, Gilvan Lunz. Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto). 2011. 156 f. Dissertação (Mestrado em Estruturas; Geotecnia; Construção Civil) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2011.http://www.bdtd.uerj.br/handle/1/11529The structural engineers experience and knowledge allied by the use newly developed materials and technologies have produced steel and composite (steel-concrete) footbridges with daring structures. This fact have generated very slender structural footbridges and consequently changed the serviceability and ultimate limit states associated to their design. A direct consequence of this design trend is a considerable increase of structural vibrations. Therefore, the present investigation was carried out based on a more realistic load model developed to incorporate the dynamic effects induced by people walking. The load model considered the ascent and descending movement of the human body effective mass at each step. The position of the dynamic load was also changed according to the individual position and the generated time function, having a space and time description. The effect of the human heel was also incorporated in the analysis. The investigated structural model was based on a tubular composite (steel-concrete) footbridge, spanning 82.5 m. The structure is composed by three spans (32.5 m, 17.5 m and 20.0 m, respectively) and two overhangs (7.5 m and 5.0 m, respectively). The structural system is constituted by tubular steel sections and a concrete slab and is currently used for pedestrian crossing. This investigation is carried out based on correlations between the experimental results related to the footbridge dynamic response and those obtained with finite element models. The proposed computational model adopted the usual mesh refinement techniques present in finite element method simulations. The finite element model has been developed and validated with the experimental results. This model enabled a complete dynamic evaluation of the investigated tubular footbridge especially in terms of human comfort and its associated vibration serviceability limit states. The system dynamic response, in terms of peak accelerations, was obtained and compared to the limiting values proposed by several authors and design standards. The peak accelerations found in the present analysis indicated that the investigated tubular footbridge presented problems related with human comfort. Hence it was detected that this type of structure can reach high vibration levels that can compromise the footbridge user s comfort and especially its safety.A experiência dos engenheiros estruturais e os conhecimentos adquiridos pelo uso de materiais e novas tecnologias, têm ocasionado estruturas de aço e mistas (aço-concreto) de passarelas cada vez mais ousadas. Este fato tem gerado estruturas de passarelas esbeltas, e consequentemente, alterando os seus estados de limite de serviço e último associados ao seu projeto. Uma consequência direta desta tendência de projeto é o aumento considerável das vibrações das estruturas. Portanto, a presente investigação foi realizada com base em um modelo de carregamento mais realista, desenvolvido para incorporar os efeitos dinâmicos induzidos pela caminhada de pessoas. O modelo de carregamento considera a subida e a descida da massa efetiva do corpo em cada passo. A posição da carga dinâmica também foi alterada de acordo com a posição do pedestre sobre a estrutura e a função do tempo gerada, possui uma variação espacial e temporal. O efeito do calcanhar do pedestre também foi incorporado na análise. O modelo estrutural investigado baseia-se em uma passarela tubular (aço-concreto), medindo 82,5m. A estrutura é composta por três vãos (32,5 m, 20,0 m e 17,5 m, respectivamente) e dois balanços (7,5 m e 5,0 m, respectivamente). O sistema estrutural é constituído por perfis de aço tubular e uma laje de concreto, e é atualmente utilizada para travessia de pedestres. Esta investigação é realizada com base em resultados experimentais, relacionando a resposta dinâmica da passarela com as obtidas via modelos de elementos finitos. O modelo computacional proposto adota as técnicas de refinamento de malha, usualmente presente em simulações pelo método de elementos finitos. O modelo de elementos finitos foi desenvolvido e validado com resultados experimentais. Este modelo de passarela tubular permitiu uma avaliação dinâmica completa, investigando especialmente ao conforto humano e seus limites de utilização associados à vibração. A resposta dinâmica do sistema, em termos de acelerações de pico, foi obtida e comparada com os valores limites propostos por diversos autores e padrões de projeto. As acelerações de pico encontradas na presente análise indicou que a passarela tubular investigada apresentou problemas relacionados com o conforto humano. Por isso, foi detectado que este tipo de estrutura pode atingir níveis de vibrações excessivas que podem comprometer o conforto do usuário na passarela e especialmente a sua segurança.Submitted by Boris Flegr (boris@uerj.br) on 2021-01-06T19:00:56Z No. of bitstreams: 1 Gilvan Lunz.pdf: 6549864 bytes, checksum: 9c6445094cde0b356573edad67afd7d4 (MD5)Made available in DSpace on 2021-01-06T19:00:56Z (GMT). No. of bitstreams: 1 Gilvan Lunz.pdf: 6549864 bytes, checksum: 9c6445094cde0b356573edad67afd7d4 (MD5) Previous issue date: 2011-12-09Fundação de Amparo à Pesquisa do Estado do Rio de Janeiroapplication/pdfporUniversidade do Estado do Rio de JaneiroPrograma de Pós-Graduação em Engenharia CivilUERJBRCentro de Tecnologia e Ciências::Faculdade de Engenhariastructural vibrationdynamic analysistubular footbridgespedestrian walkingVibrações de estruturasanálise dinâmicapassarelas tubularescaminhar de pedestresCNPQ::ENGENHARIAS::ENGENHARIA CIVILModelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto)Modeling of the dynamic behaviour of composite (steel-concrete) tubular foot bridgesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UERJinstname:Universidade do Estado do Rio de Janeiro (UERJ)instacron:UERJORIGINALGilvan Lunz.pdfapplication/pdf6549864http://www.bdtd.uerj.br/bitstream/1/11529/1/Gilvan+Lunz.pdf9c6445094cde0b356573edad67afd7d4MD511/115292024-02-27 14:52:38.338oai:www.bdtd.uerj.br:1/11529Biblioteca Digital de Teses e Dissertaçõeshttp://www.bdtd.uerj.br/PUBhttps://www.bdtd.uerj.br:8443/oai/requestbdtd.suporte@uerj.bropendoar:29032024-02-27T17:52:38Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ)false |
dc.title.por.fl_str_mv |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
dc.title.alternative.eng.fl_str_mv |
Modeling of the dynamic behaviour of composite (steel-concrete) tubular foot bridges |
title |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
spellingShingle |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) Debona, Gilvan Lunz structural vibration dynamic analysis tubular footbridges pedestrian walking Vibrações de estruturas análise dinâmica passarelas tubulares caminhar de pedestres CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
title_full |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
title_fullStr |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
title_full_unstemmed |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
title_sort |
Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto) |
author |
Debona, Gilvan Lunz |
author_facet |
Debona, Gilvan Lunz |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Silva, José Guilherme Santos da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4422797300106230 |
dc.contributor.advisor-co1.fl_str_mv |
Sieira, Ana Cristina Castro Fontenla |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/8653261732041736 |
dc.contributor.advisor-co2.fl_str_mv |
Vellasco, Pedro Colmar Gonçalves da Silva |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://lattes.cnpq.br/2438486171976888 |
dc.contributor.referee1.fl_str_mv |
Soeiro, Francisco José da Cunha Pires |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/8690926504635230 |
dc.contributor.referee2.fl_str_mv |
Varela, Wendell Diniz |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/9860915673031541 |
dc.contributor.referee3.fl_str_mv |
Figueiredo, Fábio Pereira |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/1345504776191391 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1610243215800319 |
dc.contributor.author.fl_str_mv |
Debona, Gilvan Lunz |
contributor_str_mv |
Silva, José Guilherme Santos da Sieira, Ana Cristina Castro Fontenla Vellasco, Pedro Colmar Gonçalves da Silva Soeiro, Francisco José da Cunha Pires Varela, Wendell Diniz Figueiredo, Fábio Pereira |
dc.subject.eng.fl_str_mv |
structural vibration dynamic analysis tubular footbridges pedestrian walking |
topic |
structural vibration dynamic analysis tubular footbridges pedestrian walking Vibrações de estruturas análise dinâmica passarelas tubulares caminhar de pedestres CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.por.fl_str_mv |
Vibrações de estruturas análise dinâmica passarelas tubulares caminhar de pedestres |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
description |
The structural engineers experience and knowledge allied by the use newly developed materials and technologies have produced steel and composite (steel-concrete) footbridges with daring structures. This fact have generated very slender structural footbridges and consequently changed the serviceability and ultimate limit states associated to their design. A direct consequence of this design trend is a considerable increase of structural vibrations. Therefore, the present investigation was carried out based on a more realistic load model developed to incorporate the dynamic effects induced by people walking. The load model considered the ascent and descending movement of the human body effective mass at each step. The position of the dynamic load was also changed according to the individual position and the generated time function, having a space and time description. The effect of the human heel was also incorporated in the analysis. The investigated structural model was based on a tubular composite (steel-concrete) footbridge, spanning 82.5 m. The structure is composed by three spans (32.5 m, 17.5 m and 20.0 m, respectively) and two overhangs (7.5 m and 5.0 m, respectively). The structural system is constituted by tubular steel sections and a concrete slab and is currently used for pedestrian crossing. This investigation is carried out based on correlations between the experimental results related to the footbridge dynamic response and those obtained with finite element models. The proposed computational model adopted the usual mesh refinement techniques present in finite element method simulations. The finite element model has been developed and validated with the experimental results. This model enabled a complete dynamic evaluation of the investigated tubular footbridge especially in terms of human comfort and its associated vibration serviceability limit states. The system dynamic response, in terms of peak accelerations, was obtained and compared to the limiting values proposed by several authors and design standards. The peak accelerations found in the present analysis indicated that the investigated tubular footbridge presented problems related with human comfort. Hence it was detected that this type of structure can reach high vibration levels that can compromise the footbridge user s comfort and especially its safety. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-12-09 |
dc.date.available.fl_str_mv |
2012-03-07 |
dc.date.accessioned.fl_str_mv |
2021-01-06T19:00:56Z |
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 |
DEBONA, Gilvan Lunz. Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto). 2011. 156 f. Dissertação (Mestrado em Estruturas; Geotecnia; Construção Civil) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2011. |
dc.identifier.uri.fl_str_mv |
http://www.bdtd.uerj.br/handle/1/11529 |
identifier_str_mv |
DEBONA, Gilvan Lunz. Modelagem do comportamento dinâmico de passarelas tubulares em aço e mistas (aço-concreto). 2011. 156 f. Dissertação (Mestrado em Estruturas; Geotecnia; Construção Civil) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2011. |
url |
http://www.bdtd.uerj.br/handle/1/11529 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Universidade do Estado do Rio de Janeiro |
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Programa de Pós-Graduação em Engenharia Civil |
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UERJ |
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BR |
dc.publisher.department.fl_str_mv |
Centro de Tecnologia e Ciências::Faculdade de Engenharia |
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Universidade do Estado do Rio de Janeiro |
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UERJ |
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UERJ |
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Biblioteca Digital de Teses e Dissertações da UERJ |
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Biblioteca Digital de Teses e Dissertações da UERJ |
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Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ) |
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bdtd.suporte@uerj.br |
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