Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Engenharia Agrícola |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100016 |
Resumo: | This study aims to present an alternative calculation methodology based on the Least Squares Method for determining the modulus of elasticity in bending wooden beams of structural dimensions. The equations developed require knowledge of three or five points measured in displacements along the piece, allowing greater reliability on the response variable, using the statistical bending test at three points and non-destructively, resulting from imposition of measures from small displacements L/300 and L/200, the largest being stipulated by the Brazilian norm NBR 7190:1997. The woods tested were Angico, Cumaru, Garapa and Jatoba. Besides obtaining the modulus of elasticity through the alternative methodology proposed, these were also obtained employing the Brazilian norm NBR 7190:1997, adapted to the condition of non-destructive testing (small displacements) and for pieces of structural dimensions. The results of the modulus of elasticity of the four species of wood according to both calculation approaches used proved to be equivalent, implying the good approximation provided by the methodology of calculation adapted from the Brazilian norm. |
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Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensionswoodbeam theorymodulus of elasticityLeast Squares MethodThis study aims to present an alternative calculation methodology based on the Least Squares Method for determining the modulus of elasticity in bending wooden beams of structural dimensions. The equations developed require knowledge of three or five points measured in displacements along the piece, allowing greater reliability on the response variable, using the statistical bending test at three points and non-destructively, resulting from imposition of measures from small displacements L/300 and L/200, the largest being stipulated by the Brazilian norm NBR 7190:1997. The woods tested were Angico, Cumaru, Garapa and Jatoba. Besides obtaining the modulus of elasticity through the alternative methodology proposed, these were also obtained employing the Brazilian norm NBR 7190:1997, adapted to the condition of non-destructive testing (small displacements) and for pieces of structural dimensions. The results of the modulus of elasticity of the four species of wood according to both calculation approaches used proved to be equivalent, implying the good approximation provided by the methodology of calculation adapted from the Brazilian norm.Associação Brasileira de Engenharia Agrícola2014-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100016Engenharia Agrícola v.34 n.1 2014reponame:Engenharia Agrícolainstname:Associação Brasileira de Engenharia Agrícola (SBEA)instacron:SBEA10.1590/S0100-69162014000100016info:eu-repo/semantics/openAccessChristoforo,André L.Panzera,Tulio H.Neto Junior,Carlito CalilDemarzo,Mauro A.Ribeiro Filho,Sérgio L. M.Toniolo,Luiz E.Amstalden,Rogério A. S.Lahr,Francisco A. R.eng2014-03-24T00:00:00Zoai:scielo:S0100-69162014000100016Revistahttp://www.engenhariaagricola.org.br/ORGhttps://old.scielo.br/oai/scielo-oai.phprevistasbea@sbea.org.br||sbea@sbea.org.br1809-44300100-6916opendoar:2014-03-24T00:00Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)false |
dc.title.none.fl_str_mv |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
title |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
spellingShingle |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions Christoforo,André L. wood beam theory modulus of elasticity Least Squares Method |
title_short |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
title_full |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
title_fullStr |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
title_full_unstemmed |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
title_sort |
Alternative methodology for calculating the modulus of elasticity of wooden beams of structural dimensions |
author |
Christoforo,André L. |
author_facet |
Christoforo,André L. Panzera,Tulio H. Neto Junior,Carlito Calil Demarzo,Mauro A. Ribeiro Filho,Sérgio L. M. Toniolo,Luiz E. Amstalden,Rogério A. S. Lahr,Francisco A. R. |
author_role |
author |
author2 |
Panzera,Tulio H. Neto Junior,Carlito Calil Demarzo,Mauro A. Ribeiro Filho,Sérgio L. M. Toniolo,Luiz E. Amstalden,Rogério A. S. Lahr,Francisco A. R. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Christoforo,André L. Panzera,Tulio H. Neto Junior,Carlito Calil Demarzo,Mauro A. Ribeiro Filho,Sérgio L. M. Toniolo,Luiz E. Amstalden,Rogério A. S. Lahr,Francisco A. R. |
dc.subject.por.fl_str_mv |
wood beam theory modulus of elasticity Least Squares Method |
topic |
wood beam theory modulus of elasticity Least Squares Method |
description |
This study aims to present an alternative calculation methodology based on the Least Squares Method for determining the modulus of elasticity in bending wooden beams of structural dimensions. The equations developed require knowledge of three or five points measured in displacements along the piece, allowing greater reliability on the response variable, using the statistical bending test at three points and non-destructively, resulting from imposition of measures from small displacements L/300 and L/200, the largest being stipulated by the Brazilian norm NBR 7190:1997. The woods tested were Angico, Cumaru, Garapa and Jatoba. Besides obtaining the modulus of elasticity through the alternative methodology proposed, these were also obtained employing the Brazilian norm NBR 7190:1997, adapted to the condition of non-destructive testing (small displacements) and for pieces of structural dimensions. The results of the modulus of elasticity of the four species of wood according to both calculation approaches used proved to be equivalent, implying the good approximation provided by the methodology of calculation adapted from the Brazilian norm. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-01 |
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=S0100-69162014000100016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-69162014000100016 |
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 |
Associação Brasileira de Engenharia Agrícola |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Agrícola |
dc.source.none.fl_str_mv |
Engenharia Agrícola v.34 n.1 2014 reponame:Engenharia Agrícola instname:Associação Brasileira de Engenharia Agrícola (SBEA) instacron:SBEA |
instname_str |
Associação Brasileira de Engenharia Agrícola (SBEA) |
instacron_str |
SBEA |
institution |
SBEA |
reponame_str |
Engenharia Agrícola |
collection |
Engenharia Agrícola |
repository.name.fl_str_mv |
Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA) |
repository.mail.fl_str_mv |
revistasbea@sbea.org.br||sbea@sbea.org.br |
_version_ |
1752126271878332416 |