Aerodynamic effects on a high slenderness concrete chimney

Detalhes bibliográficos
Autor(a) principal: LOREDO-SOUZA,A. M.
Data de Publicação: 2019
Outros Autores: ROCHA,M. M., OLIVEIRA,M. G. K., GRALA,P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000601353
Resumo: Abstract This paper presents the results of a theoretical-experimental study on the aerodynamic behavior of a 150m high, slenderness 30, concrete chimney. For the wind tunnel tests two scaled models were built: one rigid for the measurement of the external pressures, and other aeroelastic, in which the main dynamic characteristics of the real structure were reproduced. The dynamic response under atmospheric turbulence (along-wind direction) is described in the paper and is compatible with the methodology of the Brazilian wind code NBR-6123. A brief analysis of the transversal response due to vortex shedding is presented according to the Canadian Wind Code NBCC. It is observed that, due to the low frequency of the structure, the dynamic approach leads to results significantly larger than those obtained from applying the conventional static approach of gust wind speed. The presence of the neighborhood have increased the loads on the structures.
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spelling Aerodynamic effects on a high slenderness concrete chimneywindchimneysdynamic responsewind tunnelaeroelastic modelingAbstract This paper presents the results of a theoretical-experimental study on the aerodynamic behavior of a 150m high, slenderness 30, concrete chimney. For the wind tunnel tests two scaled models were built: one rigid for the measurement of the external pressures, and other aeroelastic, in which the main dynamic characteristics of the real structure were reproduced. The dynamic response under atmospheric turbulence (along-wind direction) is described in the paper and is compatible with the methodology of the Brazilian wind code NBR-6123. A brief analysis of the transversal response due to vortex shedding is presented according to the Canadian Wind Code NBCC. It is observed that, due to the low frequency of the structure, the dynamic approach leads to results significantly larger than those obtained from applying the conventional static approach of gust wind speed. The presence of the neighborhood have increased the loads on the structures.IBRACON - Instituto Brasileiro do Concreto2019-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000601353Revista IBRACON de Estruturas e Materiais v.12 n.6 2019reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952019000600008info:eu-repo/semantics/openAccessLOREDO-SOUZA,A. M.ROCHA,M. M.OLIVEIRA,M. G. K.GRALA,P.eng2019-12-10T00:00:00Zoai:scielo:S1983-41952019000601353Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2019-12-10T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Aerodynamic effects on a high slenderness concrete chimney
title Aerodynamic effects on a high slenderness concrete chimney
spellingShingle Aerodynamic effects on a high slenderness concrete chimney
LOREDO-SOUZA,A. M.
wind
chimneys
dynamic response
wind tunnel
aeroelastic modeling
title_short Aerodynamic effects on a high slenderness concrete chimney
title_full Aerodynamic effects on a high slenderness concrete chimney
title_fullStr Aerodynamic effects on a high slenderness concrete chimney
title_full_unstemmed Aerodynamic effects on a high slenderness concrete chimney
title_sort Aerodynamic effects on a high slenderness concrete chimney
author LOREDO-SOUZA,A. M.
author_facet LOREDO-SOUZA,A. M.
ROCHA,M. M.
OLIVEIRA,M. G. K.
GRALA,P.
author_role author
author2 ROCHA,M. M.
OLIVEIRA,M. G. K.
GRALA,P.
author2_role author
author
author
dc.contributor.author.fl_str_mv LOREDO-SOUZA,A. M.
ROCHA,M. M.
OLIVEIRA,M. G. K.
GRALA,P.
dc.subject.por.fl_str_mv wind
chimneys
dynamic response
wind tunnel
aeroelastic modeling
topic wind
chimneys
dynamic response
wind tunnel
aeroelastic modeling
description Abstract This paper presents the results of a theoretical-experimental study on the aerodynamic behavior of a 150m high, slenderness 30, concrete chimney. For the wind tunnel tests two scaled models were built: one rigid for the measurement of the external pressures, and other aeroelastic, in which the main dynamic characteristics of the real structure were reproduced. The dynamic response under atmospheric turbulence (along-wind direction) is described in the paper and is compatible with the methodology of the Brazilian wind code NBR-6123. A brief analysis of the transversal response due to vortex shedding is presented according to the Canadian Wind Code NBCC. It is observed that, due to the low frequency of the structure, the dynamic approach leads to results significantly larger than those obtained from applying the conventional static approach of gust wind speed. The presence of the neighborhood have increased the loads on the structures.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000601353
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000601353
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952019000600008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.12 n.6 2019
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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