Influence of Roof Slope on Timber Consumption in Plane Trusses Design
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.15376/biores.16.4.6750-6757 http://hdl.handle.net/11449/218793 |
Resumo: | The growing world consumption of wood in civil construction is evident, especially in structural roofing systems. Despite being from a renewable source, its rational and intelligent use is of vital importance in the execution of structural designs. Because it is a system that is recognized worldwide in the design of trussing roof structures, there are several empirical assumptions for structural calculation. To reduce timber consumption, some tile manufacturers suggest a 10% (6 degrees) slope between chords. However, after simulations of 11 slopes with angles from 5 degrees to 15 degrees, the timber consumption was inversely proportional to the slope, reaching a 90% difference between extreme angles. The method used to obtain the results was software designed according to the routines prescribed by the new draft standard of ABNT NBR 7190 (2021). Considering a prefabricated truss with 5 cm thickness sections, the design criterion was that of minimum height, increasing by 0.10 cm until all checks were satisfied. Finally, the minimum angle after which no strengthening is required on the bars was 10 degrees. |
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Influence of Roof Slope on Timber Consumption in Plane Trusses DesignTimber structuresPlane trussesSlopeDesignTimber consumptionThe growing world consumption of wood in civil construction is evident, especially in structural roofing systems. Despite being from a renewable source, its rational and intelligent use is of vital importance in the execution of structural designs. Because it is a system that is recognized worldwide in the design of trussing roof structures, there are several empirical assumptions for structural calculation. To reduce timber consumption, some tile manufacturers suggest a 10% (6 degrees) slope between chords. However, after simulations of 11 slopes with angles from 5 degrees to 15 degrees, the timber consumption was inversely proportional to the slope, reaching a 90% difference between extreme angles. The method used to obtain the results was software designed according to the routines prescribed by the new draft standard of ABNT NBR 7190 (2021). Considering a prefabricated truss with 5 cm thickness sections, the design criterion was that of minimum height, increasing by 0.10 cm until all checks were satisfied. Finally, the minimum angle after which no strengthening is required on the bars was 10 degrees.Univ Fed Sao Carlos, Dept Civil Engn Deciv, Sao Carlos, BrazilFed Univ South & Southeast Para, Dept Civil Engn, Santana Do Araguaia, BrazilPaulista State Univ Julio de Mesquita Filho, Dept Civil Engn, Ilha Solteira, BrazilUniv Sao Paulo, Sao Carlos Sch Engn Sao Carlos, Dept Struct Engn, Wood & Timber Struct Lab, Sao Carlos, SP, BrazilGoias Fed Univ, Dept Civil Engn, Catalao, BrazilPaulista State Univ Julio de Mesquita Filho, Dept Civil Engn, Ilha Solteira, BrazilNorth Carolina State Univ Dept Wood & Paper SciUniversidade Federal de São Carlos (UFSCar)Fed Univ South & Southeast ParaUniversidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Goias Fed UnivFraga, Iuri FazolinMorato de Moraes, Matheus HenriqueMenezes, Isabella SilvaArroyo, Felipe NascimentoBoff de Almeida, Joao PauloCastanheira Rodrigues, Edson FernandoMascarenhas, Fernando ResendeMoura Aquino, Vinicius Borges deMello Silva, Sergio Augusto [UNESP]Rocco Lahr, Francisco AntonioPereira, Wanderlei MalaquiasChristoforo, Andre Luis2022-04-28T17:23:07Z2022-04-28T17:23:07Z2021-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6749-6756http://dx.doi.org/10.15376/biores.16.4.6750-6757Bioresources. Raleigh: North Carolina State Univ Dept Wood & Paper Sci, v. 16, n. 4, p. 6749-6756, 2021.1930-2126http://hdl.handle.net/11449/21879310.15376/biores.16.4.6750-6757WOS:000750851200018Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBioresourcesinfo:eu-repo/semantics/openAccess2022-04-28T17:23:07Zoai:repositorio.unesp.br:11449/218793Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T17:23:07Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
title |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
spellingShingle |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design Fraga, Iuri Fazolin Timber structures Plane trusses Slope Design Timber consumption |
title_short |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
title_full |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
title_fullStr |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
title_full_unstemmed |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
title_sort |
Influence of Roof Slope on Timber Consumption in Plane Trusses Design |
author |
Fraga, Iuri Fazolin |
author_facet |
Fraga, Iuri Fazolin Morato de Moraes, Matheus Henrique Menezes, Isabella Silva Arroyo, Felipe Nascimento Boff de Almeida, Joao Paulo Castanheira Rodrigues, Edson Fernando Mascarenhas, Fernando Resende Moura Aquino, Vinicius Borges de Mello Silva, Sergio Augusto [UNESP] Rocco Lahr, Francisco Antonio Pereira, Wanderlei Malaquias Christoforo, Andre Luis |
author_role |
author |
author2 |
Morato de Moraes, Matheus Henrique Menezes, Isabella Silva Arroyo, Felipe Nascimento Boff de Almeida, Joao Paulo Castanheira Rodrigues, Edson Fernando Mascarenhas, Fernando Resende Moura Aquino, Vinicius Borges de Mello Silva, Sergio Augusto [UNESP] Rocco Lahr, Francisco Antonio Pereira, Wanderlei Malaquias Christoforo, Andre Luis |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) Fed Univ South & Southeast Para Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) Goias Fed Univ |
dc.contributor.author.fl_str_mv |
Fraga, Iuri Fazolin Morato de Moraes, Matheus Henrique Menezes, Isabella Silva Arroyo, Felipe Nascimento Boff de Almeida, Joao Paulo Castanheira Rodrigues, Edson Fernando Mascarenhas, Fernando Resende Moura Aquino, Vinicius Borges de Mello Silva, Sergio Augusto [UNESP] Rocco Lahr, Francisco Antonio Pereira, Wanderlei Malaquias Christoforo, Andre Luis |
dc.subject.por.fl_str_mv |
Timber structures Plane trusses Slope Design Timber consumption |
topic |
Timber structures Plane trusses Slope Design Timber consumption |
description |
The growing world consumption of wood in civil construction is evident, especially in structural roofing systems. Despite being from a renewable source, its rational and intelligent use is of vital importance in the execution of structural designs. Because it is a system that is recognized worldwide in the design of trussing roof structures, there are several empirical assumptions for structural calculation. To reduce timber consumption, some tile manufacturers suggest a 10% (6 degrees) slope between chords. However, after simulations of 11 slopes with angles from 5 degrees to 15 degrees, the timber consumption was inversely proportional to the slope, reaching a 90% difference between extreme angles. The method used to obtain the results was software designed according to the routines prescribed by the new draft standard of ABNT NBR 7190 (2021). Considering a prefabricated truss with 5 cm thickness sections, the design criterion was that of minimum height, increasing by 0.10 cm until all checks were satisfied. Finally, the minimum angle after which no strengthening is required on the bars was 10 degrees. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-01 2022-04-28T17:23:07Z 2022-04-28T17:23:07Z |
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.uri.fl_str_mv |
http://dx.doi.org/10.15376/biores.16.4.6750-6757 Bioresources. Raleigh: North Carolina State Univ Dept Wood & Paper Sci, v. 16, n. 4, p. 6749-6756, 2021. 1930-2126 http://hdl.handle.net/11449/218793 10.15376/biores.16.4.6750-6757 WOS:000750851200018 |
url |
http://dx.doi.org/10.15376/biores.16.4.6750-6757 http://hdl.handle.net/11449/218793 |
identifier_str_mv |
Bioresources. Raleigh: North Carolina State Univ Dept Wood & Paper Sci, v. 16, n. 4, p. 6749-6756, 2021. 1930-2126 10.15376/biores.16.4.6750-6757 WOS:000750851200018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Bioresources |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
6749-6756 |
dc.publisher.none.fl_str_mv |
North Carolina State Univ Dept Wood & Paper Sci |
publisher.none.fl_str_mv |
North Carolina State Univ Dept Wood & Paper Sci |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1799965487676784640 |