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Doctoral Thesis
DOI
10.11606/T.18.2018.tde-02042018-102638
Document
Author
Full name
Orlando Ferreira Gomes
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1997
Supervisor
Committee
Calil Junior, Carlito (President)
Agnelli, José Augusto Marcondes
Almeida, Pedro Afonso de Oliveira
Gonçalves, Roberto Martins
Lahr, Francisco Antonio Rocco
Title in Portuguese
Estudo das ligações cavilhadas impregnadas com resinas estirênicas empregadas em estruturas de madeira
Keywords in Portuguese
Cavilhas
Cavilhas de madeira
Estruturas de madeira
Impregnação
Ligações
Resinas estirênicas
Abstract in Portuguese
O trabalho tem por finalidade o estudo teórico e experimental de ligações em estruturas de madeira com cavilhas de madeira de seção cilíndrica impregnadas com resinas estirênicas. A impregnação da madeira tem como objetivos: diminuir o processo de degradação, retardação ao fogo, melhorar a estabilidade dimensional e aumentar as propriedades de resistência e elasticidade da madeira. Foram determinados experimentalmente as características de resistência e elasticidade do material e posteriormente realizados ensaios de ligações padronizados com solicitação paralela e normal às fibras. Os resultados dos ensaios mostram aumento na resistência de compressão normal até 292% e aumento de 80% no limite de proporcionalidade da ligação. A madeira utilizada para a impregnação foi o Pinus de reflorestamento.
Title in English
Study of timber dowels joints impregnated with commercial styrene resin to timber structures
Keywords in English
Connections
Dowel
Impregnation
Resin styrene
Timber dowels
Timber structures
Abstract in English
The aim of this work is a theorytical and experimental studies of joints in timber structures with wooden dowels of circular cross section impregnated with styrenic resins. The objetives of wood impregnation are to decrease the deterioration process, to promote fire retardation, to improve dimensional stability and mainly increase the compression strength and stiffiness of wood. The strength and stiffness properties of the material are determined. Standard joints tests are carried out in compression both parallel and perpendicular to grains. The test results increases of compression perpendicular strength up to 292% and the up to 80% proportional limit joint. The wood used for impregnation was Pinus from reforestation sites.
 
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Publishing Date
2018-04-02
 
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