Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.

Detalhes bibliográficos
Autor(a) principal: Xavier, Ellen Martins
Data de Publicação: 2019
Outros Autores: Ribeiro Neto, Juliano Geraldo, Sarmanho, Arlene Maria Cunha, Amparo, Lucas Roquete, Paula, Letícia Gualberto Caldeira de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
Texto Completo: http://www.repositorio.ufop.br/handle/123456789/12388
https://doi.org/10.1590/s1983-41952019000200008
Resumo: This paper presents experimental and theoretical analysis of bolts employed as shear connectors in circular concrete-filled steel tube columns (CFTs). The theoretical results, obtained from ABNT NBR 16239:2013 formulations, were compared with the experimental results. A series of push-out tests were carried out, where the diameter and length of the bolts, the number of connectors and the concrete strength were varied. From the experimental results, it was observed that the equations from ABNT NBR 16239:2013 are conservative. Therefore, it is proposed an adjustment to the formulations in order to consider the concrete confinement. It was also verified that increments in the diameter and the length of the bolt increase the load capacity of the connector. However, the variation of the quantity of bolts and the concrete strength did not interfere in the load capacity.
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spelling Xavier, Ellen MartinsRibeiro Neto, Juliano GeraldoSarmanho, Arlene Maria CunhaAmparo, Lucas RoquetePaula, Letícia Gualberto Caldeira de2020-06-25T15:44:39Z2020-06-25T15:44:39Z2019XAVIER, E. M. et al. Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns. Revista IBRACON de Estruturas e Materiais, São Paulo, v. 12, n. 2, p. 337-370, abr. 2019. Disponível em: <http://www.scielo.br/scielo.php?pid=S1983-41952019000200337&script=sci_arttext>. Acesso em: 10 mar. 2020.1983-4195http://www.repositorio.ufop.br/handle/123456789/12388https://doi.org/10.1590/s1983-41952019000200008This paper presents experimental and theoretical analysis of bolts employed as shear connectors in circular concrete-filled steel tube columns (CFTs). The theoretical results, obtained from ABNT NBR 16239:2013 formulations, were compared with the experimental results. A series of push-out tests were carried out, where the diameter and length of the bolts, the number of connectors and the concrete strength were varied. From the experimental results, it was observed that the equations from ABNT NBR 16239:2013 are conservative. Therefore, it is proposed an adjustment to the formulations in order to consider the concrete confinement. It was also verified that increments in the diameter and the length of the bolt increase the load capacity of the connector. However, the variation of the quantity of bolts and the concrete strength did not interfere in the load capacity.Este estudo apresenta análises experimentais e teóricas do uso de parafusos como conectores de cisalhamento em pilares mistos de aço em seção tubular circular preenchidos com concreto (PMPCs). Os resultados obtidos experimentalmente são comparados com os resultados das formulações propostas pela norma ABNT NBR 16239:2013. Os ensaios são de cisalhamento direto, variando parâmetros como diâmetro e comprimento dos parafusos, quantidade de conectores e resistência do concreto. A partir dos resultados experimentais observou-se que as equações da ABNT NBR 16239:2013 estão a favor da segurança, e é proposta uma adequação das formulações da norma para considerar o efeito do confinamento do concreto. Verificou-se também que o aumento do diâmetro e comprimento do parafuso aumenta a capacidade de carga do conector, porém a variação da quantidade de parafusos e da resistência do concreto não interferem na sua capacidade de carga.This is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: o próprio artigo.info:eu-repo/semantics/openAccessCircular tubular sectionSeção tubular circularExperimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.Análise experimental do uso de parafusos como conectores de cisalhamento em pilar misto circular preenchido com concreto.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/12388/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_ExperimentalAnalysisBolts.pdfARTIGO_ExperimentalAnalysisBolts.pdfapplication/pdf2029641http://www.repositorio.ufop.br/bitstream/123456789/12388/1/ARTIGO_ExperimentalAnalysisBolts.pdf0d64f27bcbea990bf91084aff70ba276MD51123456789/123882020-06-25 11:44:39.04oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332020-06-25T15:44:39Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.pt_BR.fl_str_mv Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
dc.title.alternative.pt_BR.fl_str_mv Análise experimental do uso de parafusos como conectores de cisalhamento em pilar misto circular preenchido com concreto.
title Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
spellingShingle Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
Xavier, Ellen Martins
Circular tubular section
Seção tubular circular
title_short Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
title_full Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
title_fullStr Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
title_full_unstemmed Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
title_sort Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns.
author Xavier, Ellen Martins
author_facet Xavier, Ellen Martins
Ribeiro Neto, Juliano Geraldo
Sarmanho, Arlene Maria Cunha
Amparo, Lucas Roquete
Paula, Letícia Gualberto Caldeira de
author_role author
author2 Ribeiro Neto, Juliano Geraldo
Sarmanho, Arlene Maria Cunha
Amparo, Lucas Roquete
Paula, Letícia Gualberto Caldeira de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Xavier, Ellen Martins
Ribeiro Neto, Juliano Geraldo
Sarmanho, Arlene Maria Cunha
Amparo, Lucas Roquete
Paula, Letícia Gualberto Caldeira de
dc.subject.por.fl_str_mv Circular tubular section
Seção tubular circular
topic Circular tubular section
Seção tubular circular
description This paper presents experimental and theoretical analysis of bolts employed as shear connectors in circular concrete-filled steel tube columns (CFTs). The theoretical results, obtained from ABNT NBR 16239:2013 formulations, were compared with the experimental results. A series of push-out tests were carried out, where the diameter and length of the bolts, the number of connectors and the concrete strength were varied. From the experimental results, it was observed that the equations from ABNT NBR 16239:2013 are conservative. Therefore, it is proposed an adjustment to the formulations in order to consider the concrete confinement. It was also verified that increments in the diameter and the length of the bolt increase the load capacity of the connector. However, the variation of the quantity of bolts and the concrete strength did not interfere in the load capacity.
publishDate 2019
dc.date.issued.fl_str_mv 2019
dc.date.accessioned.fl_str_mv 2020-06-25T15:44:39Z
dc.date.available.fl_str_mv 2020-06-25T15:44:39Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv XAVIER, E. M. et al. Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns. Revista IBRACON de Estruturas e Materiais, São Paulo, v. 12, n. 2, p. 337-370, abr. 2019. Disponível em: <http://www.scielo.br/scielo.php?pid=S1983-41952019000200337&script=sci_arttext>. Acesso em: 10 mar. 2020.
dc.identifier.uri.fl_str_mv http://www.repositorio.ufop.br/handle/123456789/12388
dc.identifier.issn.none.fl_str_mv 1983-4195
dc.identifier.doi.pt_BR.fl_str_mv https://doi.org/10.1590/s1983-41952019000200008
identifier_str_mv XAVIER, E. M. et al. Experimental analysis of bolts employed as shear connectors in circular concrete-filled tube columns. Revista IBRACON de Estruturas e Materiais, São Paulo, v. 12, n. 2, p. 337-370, abr. 2019. Disponível em: <http://www.scielo.br/scielo.php?pid=S1983-41952019000200337&script=sci_arttext>. Acesso em: 10 mar. 2020.
1983-4195
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institution UFOP
reponame_str Repositório Institucional da UFOP
collection Repositório Institucional da UFOP
bitstream.url.fl_str_mv http://www.repositorio.ufop.br/bitstream/123456789/12388/2/license.txt
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