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Master's Dissertation
DOI
10.11606/D.18.2013.tde-07052013-110714
Document
Author
Full name
Gloria Esther Urrea Ceferino
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2013
Supervisor
Committee
Calil Junior, Carlito (President)
Dias, Antonio Alves
Pigozzo, Julio César
Title in Portuguese
Pontes protendidas de madeira com cordoalhas engraxadas: perda da protensão
Keywords in Portuguese
Estruturas de madeira
Pontes de madeira
Protensão transversal
Abstract in Portuguese
As pontes protendidas transversalmente de madeira vêm sendo pesquisadas no Brasil desde o ano 1995, com madeiras de reflorestamento e outros materiais nacionais. Os resultados mostram a viabilidade da utilização desse sistema na construção de pontes de madeira, sejam em vias rurais, urbanas e até mesmo em rodoviárias no país, a fim de viabilizar melhoras ao acesso onde se faz necessário, além de contribuição nos quesitos de segurança estrutural, em função do trafego. Este trabalho tem como objetivos os estudos teórico e experimental de pontes de madeiras protendidas transversalmente com cordoalhas engraxadas, focando, principalmente, a análise do desempenho da ponte e os estudos das influências da temperatura e da umidade no mecanismo de perda de protensão de tabuleiros laminados com madeiras.
Title in English
Stress-laminated timber bridge with wire rope greased: stress relaxation
Keywords in English
Stress-laminated
Timber bridges
Timber structures
Abstract in English
Since 1995 Stress-Laminated Timber Bridge built with reforestation wood and other national materials have been researched in Brazil. The results show feasibility to use this system for build timber bridges, in rural and urban roads, and even in federal highways, in order to facilitate access improvements where needed, plus contribution as safe structural depending on the traffic. The aims of this paper is analyze of theoretical and experimental stress-laminated Timber Bridge with wire rope, focusing, mainly, bridges field performance and thermal response and moisture content as influence in stress relaxation in wood lumber slab.
 
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Publishing Date
2013-05-10
 
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