Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis
Autor(a) principal: | |
---|---|
Data de Publicação: | 2002 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/231000 |
Resumo: | This paper presents and discusses test results of simulated suction effect due wind action on purlin-channel and lipped-channel sections carried out in a vacuum box. The chosen profile sections and their dimensions are those frequently used in steel construction in Brazil. The experimental results and the failure mode analysis of the purlin behaviour subjected to suction effect were compared with the theoretical analysis and R-factor for all load steps. The tests were carried out in a vacuum box with plan dimensions of 4 m × 6 m, where the suction effect due to wind was simulated. The air contained inside the vacuum box was gradually removed by a vacuum cleaner and the results of R-factors were obtained. A total of 15 channel and lipped-channel profiles of 5,740mm length were tested. The first series of tests was carried out without sag rods while the second purlin test was executed with two sag rods, also representing usual situations of those elements in the Brazilian steel construction. The steel panel had a trapezoidal section with 40mm height and 0.65 mm thickness, connected to the profiles using screws. They were measured vertical and horizontal displacements and strains in the middle section of the purlin. Those results allowed an evaluation of the strain and the R-Factor, as proposed by LaBoube (1992, 1991), during each load steps. |
id |
UNSP_831967f7698a65c3a9b3adf130978baf |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/231000 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysisThis paper presents and discusses test results of simulated suction effect due wind action on purlin-channel and lipped-channel sections carried out in a vacuum box. The chosen profile sections and their dimensions are those frequently used in steel construction in Brazil. The experimental results and the failure mode analysis of the purlin behaviour subjected to suction effect were compared with the theoretical analysis and R-factor for all load steps. The tests were carried out in a vacuum box with plan dimensions of 4 m × 6 m, where the suction effect due to wind was simulated. The air contained inside the vacuum box was gradually removed by a vacuum cleaner and the results of R-factors were obtained. A total of 15 channel and lipped-channel profiles of 5,740mm length were tested. The first series of tests was carried out without sag rods while the second purlin test was executed with two sag rods, also representing usual situations of those elements in the Brazilian steel construction. The steel panel had a trapezoidal section with 40mm height and 0.65 mm thickness, connected to the profiles using screws. They were measured vertical and horizontal displacements and strains in the middle section of the purlin. Those results allowed an evaluation of the strain and the R-Factor, as proposed by LaBoube (1992, 1991), during each load steps.Civil Engineering Department State University of São Paulo, BauruDepartment of Structural Engineering University of São Paulo, São CarlosUniversidade de São Paulo (USP)Javaroni, C. E.Gonçalves, R. M.Malite, M.2022-04-29T08:43:00Z2022-04-29T08:43:00Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject523-535International Specialty Conference on Cold-Formed Steel Structures: Recent Research and Developments in Cold-Formed Steel Design and Construction, p. 523-535.http://hdl.handle.net/11449/2310002-s2.0-3042638650Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Specialty Conference on Cold-Formed Steel Structures: Recent Research and Developments in Cold-Formed Steel Design and Constructioninfo:eu-repo/semantics/openAccess2024-06-28T12:56:52Zoai:repositorio.unesp.br:11449/231000Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-28T12:56:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
title |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
spellingShingle |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis Javaroni, C. E. |
title_short |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
title_full |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
title_fullStr |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
title_full_unstemmed |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
title_sort |
Experimental analysis of cold-formed steel channel and lipped-channel profiles connected to roof panel - R-Factor analysis |
author |
Javaroni, C. E. |
author_facet |
Javaroni, C. E. Gonçalves, R. M. Malite, M. |
author_role |
author |
author2 |
Gonçalves, R. M. Malite, M. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Javaroni, C. E. Gonçalves, R. M. Malite, M. |
description |
This paper presents and discusses test results of simulated suction effect due wind action on purlin-channel and lipped-channel sections carried out in a vacuum box. The chosen profile sections and their dimensions are those frequently used in steel construction in Brazil. The experimental results and the failure mode analysis of the purlin behaviour subjected to suction effect were compared with the theoretical analysis and R-factor for all load steps. The tests were carried out in a vacuum box with plan dimensions of 4 m × 6 m, where the suction effect due to wind was simulated. The air contained inside the vacuum box was gradually removed by a vacuum cleaner and the results of R-factors were obtained. A total of 15 channel and lipped-channel profiles of 5,740mm length were tested. The first series of tests was carried out without sag rods while the second purlin test was executed with two sag rods, also representing usual situations of those elements in the Brazilian steel construction. The steel panel had a trapezoidal section with 40mm height and 0.65 mm thickness, connected to the profiles using screws. They were measured vertical and horizontal displacements and strains in the middle section of the purlin. Those results allowed an evaluation of the strain and the R-Factor, as proposed by LaBoube (1992, 1991), during each load steps. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-12-01 2022-04-29T08:43:00Z 2022-04-29T08:43:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
International Specialty Conference on Cold-Formed Steel Structures: Recent Research and Developments in Cold-Formed Steel Design and Construction, p. 523-535. http://hdl.handle.net/11449/231000 2-s2.0-3042638650 |
identifier_str_mv |
International Specialty Conference on Cold-Formed Steel Structures: Recent Research and Developments in Cold-Formed Steel Design and Construction, p. 523-535. 2-s2.0-3042638650 |
url |
http://hdl.handle.net/11449/231000 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Specialty Conference on Cold-Formed Steel Structures: Recent Research and Developments in Cold-Formed Steel Design and Construction |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
523-535 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649628840656896 |