Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | The Journal of Engineering and Exact Sciences |
Texto Completo: | https://periodicos.ufv.br/jcec/article/view/16880 |
Resumo: | This research presents a numerical study of the behavior of reinforced columns with a square cross section subjected to eccentric stress under the influence of fire. As a first step, the study examined the effects of exposing columns to fire with an increasing temperature up to 600°C for 60 minutes under eccentric loading conditions (e/b = 0, 0.1, 0.15, 0.20). As a second step, the columns were strengthened with a 100-mm concrete jacket and shirts supported by a steel structure consisting of vertical angles and horizontal spreaders to determine the effectiveness of the strengthening in increasing the resistance of these damaged columns. After the fire, this type of reinforcement is considered better than reinforcement with concrete shirts, reinforcement with carbon fiber-reinforced polymers, and others because of its advantages. There are many advantages to the ease and speed of implementation. The results showed that the columns that were repaired and strengthened after the fire with the steel structure casing led to a significant increase in resistance. It was found that the greater the thickness of the steel structure, the greater the resistance, and that the greater the eccentricity ratio, the lower the resistance as well as the collapse load. |
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Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposureReinforced concrete columnFireEccentricity loadNumerical investigationJacketThis research presents a numerical study of the behavior of reinforced columns with a square cross section subjected to eccentric stress under the influence of fire. As a first step, the study examined the effects of exposing columns to fire with an increasing temperature up to 600°C for 60 minutes under eccentric loading conditions (e/b = 0, 0.1, 0.15, 0.20). As a second step, the columns were strengthened with a 100-mm concrete jacket and shirts supported by a steel structure consisting of vertical angles and horizontal spreaders to determine the effectiveness of the strengthening in increasing the resistance of these damaged columns. After the fire, this type of reinforcement is considered better than reinforcement with concrete shirts, reinforcement with carbon fiber-reinforced polymers, and others because of its advantages. There are many advantages to the ease and speed of implementation. The results showed that the columns that were repaired and strengthened after the fire with the steel structure casing led to a significant increase in resistance. It was found that the greater the thickness of the steel structure, the greater the resistance, and that the greater the eccentricity ratio, the lower the resistance as well as the collapse load.Universidade Federal de Viçosa - UFV2023-10-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/jcec/article/view/1688010.18540/jcecvl9iss11pp16880-01eThe Journal of Engineering and Exact Sciences; Vol. 9 No. 11 (2023); 16880-01eThe Journal of Engineering and Exact Sciences; Vol. 9 Núm. 11 (2023); 16880-01eThe Journal of Engineering and Exact Sciences; v. 9 n. 11 (2023); 16880-01e2527-1075reponame:The Journal of Engineering and Exact Sciencesinstname:Universidade Federal de Viçosa (UFV)instacron:UFVenghttps://periodicos.ufv.br/jcec/article/view/16880/8560Copyright (c) 2023 The Journal of Engineering and Exact Scienceshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDimia, Mohammed SalahBelakhdar, Ahmed RafikRabehi, RachidBaghdadi, MohamedSiqueira, Antonio Marcos de OliveiraCampos, Julio Cesar Costa2024-03-26T17:20:57Zoai:ojs.periodicos.ufv.br:article/16880Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/oai2527-10752527-1075opendoar:2024-03-26T17:20:57The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
title |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
spellingShingle |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure Dimia, Mohammed Salah Reinforced concrete column Fire Eccentricity load Numerical investigation Jacket |
title_short |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
title_full |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
title_fullStr |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
title_full_unstemmed |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
title_sort |
Effectiveness of composite jacket strengthening of reinforced concrete columns under eccentric load after fire exposure |
author |
Dimia, Mohammed Salah |
author_facet |
Dimia, Mohammed Salah Belakhdar, Ahmed Rafik Rabehi, Rachid Baghdadi, Mohamed Siqueira, Antonio Marcos de Oliveira Campos, Julio Cesar Costa |
author_role |
author |
author2 |
Belakhdar, Ahmed Rafik Rabehi, Rachid Baghdadi, Mohamed Siqueira, Antonio Marcos de Oliveira Campos, Julio Cesar Costa |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Dimia, Mohammed Salah Belakhdar, Ahmed Rafik Rabehi, Rachid Baghdadi, Mohamed Siqueira, Antonio Marcos de Oliveira Campos, Julio Cesar Costa |
dc.subject.por.fl_str_mv |
Reinforced concrete column Fire Eccentricity load Numerical investigation Jacket |
topic |
Reinforced concrete column Fire Eccentricity load Numerical investigation Jacket |
description |
This research presents a numerical study of the behavior of reinforced columns with a square cross section subjected to eccentric stress under the influence of fire. As a first step, the study examined the effects of exposing columns to fire with an increasing temperature up to 600°C for 60 minutes under eccentric loading conditions (e/b = 0, 0.1, 0.15, 0.20). As a second step, the columns were strengthened with a 100-mm concrete jacket and shirts supported by a steel structure consisting of vertical angles and horizontal spreaders to determine the effectiveness of the strengthening in increasing the resistance of these damaged columns. After the fire, this type of reinforcement is considered better than reinforcement with concrete shirts, reinforcement with carbon fiber-reinforced polymers, and others because of its advantages. There are many advantages to the ease and speed of implementation. The results showed that the columns that were repaired and strengthened after the fire with the steel structure casing led to a significant increase in resistance. It was found that the greater the thickness of the steel structure, the greater the resistance, and that the greater the eccentricity ratio, the lower the resistance as well as the collapse load. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10-29 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufv.br/jcec/article/view/16880 10.18540/jcecvl9iss11pp16880-01e |
url |
https://periodicos.ufv.br/jcec/article/view/16880 |
identifier_str_mv |
10.18540/jcecvl9iss11pp16880-01e |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufv.br/jcec/article/view/16880/8560 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 The Journal of Engineering and Exact Sciences https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 The Journal of Engineering and Exact Sciences https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
dc.source.none.fl_str_mv |
The Journal of Engineering and Exact Sciences; Vol. 9 No. 11 (2023); 16880-01e The Journal of Engineering and Exact Sciences; Vol. 9 Núm. 11 (2023); 16880-01e The Journal of Engineering and Exact Sciences; v. 9 n. 11 (2023); 16880-01e 2527-1075 reponame:The Journal of Engineering and Exact Sciences instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
The Journal of Engineering and Exact Sciences |
collection |
The Journal of Engineering and Exact Sciences |
repository.name.fl_str_mv |
The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
|
_version_ |
1798313316883365888 |