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Doctoral Thesis
DOI
https://doi.org/10.11606/T.88.2009.tde-27102009-205028
Document
Author
Full name
Roberto Ramos de Freitas
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Calil Junior, Carlito (President)
Demarzo, Mauro Augusto
Garcia, Jose Nivaldo
Machado, Gilmara de Oliveira
Sales, Almir
Title in Portuguese
Modelo teórico-experimental de deterioração de postes de madeira aplicado ao Estado de São Paulo
Keywords in Portuguese
Durabilidade da madeira
Madeira
Perfuração controlada
Postes de madeira
Abstract in Portuguese
Este trabalho tem por finalidade o estudo teórico e experimental de avaliação da degradação em postes de madeira utilizados em redes de energia elétrica. Com base em ampla revisão bibliográfica, de dados climáticos de várias cidades do Estado de São Paulo e resultados de ensaios de perfuração controlada realizadas em campo, em vários municípios do Estado de São Paulo, apresenta um modelo de apodrecimento de madeira em contato com o solo, identificando quais as cidades são mais e menos agressivas à madeira nestas condições, propondo a simplificação deste modelo, facilitando sua utilização na previsão da vida útil de madeiras em contato com o solo, predizendo o grau de deterioração destes. O modelo proposto se mostrou bastante adequado, dando uma boa previsão da deterioração de postes nas diversas regiões do Estado.
Title in English
Theoretical-experimental model of timber pole deterioration applied to the State of São Paulo
Keywords in English
Controlled perforation
Timber
Timber Durability
Utility Timber Poles
Abstract in English
The purpose of this paper is the theoretical and experimental study of evaluation of timber deterioration in used poles in nets of electric energy. Basing on ample bibliographical reviews of climatic data of some cities in the State of São Paulo and results of controlled perforation testing done in field, in some cities of the State of São Paulo, it presents a model of timber decay in contact with the ground, identifying which cities are more aggressive or less aggressive to the wood in these conditions, proposing the simplification of this model, facilitating its use in the forecast of the timber service life in contact with the ground, predicting the degree of deterioration in them. The proposed model proved to be sufficiently adequate giving a good forecast of the pole deterioration in several regions of the State.
 
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Publishing Date
2009-11-18
 
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