Timber Structures
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. CONSTRUCTION AND TESTING OF GLUED LAMINATED TIMBER FRAMES FOR USE IN LAYING POULTRY HOUSES
ABSTRACT This study aimed to present a solution in glued laminated timber to replace frame structures built in reinforced concrete and metallic structure, which are common in agricultural buildings in western Paraná such as those destined to laying poultry house building by agricultural cooperatives. Structural behavior of frames build from Araucaria angust
Eng. Agríc.. Publicado em: 2020-04
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2. Influence of temperature on the adhesion of fibre reinforced polymers to timber surface
Resumo Os reforços de compósitos poliméricos com fibras de carbono (CFRP) e de vidro (GFRP) têm sido largamente usados em estruturas de madeira, onde eles podem estar expostos a condições adversas de temperatura. Para serem usados adequadamente, são necessárias informações sobre a sua adesão ao substrato. O objetivo desta pesquisa é avaliar a inf
Ambient. constr.. Publicado em: 10/06/2019
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3. Small-scale Management of Secondary Forests in the Brazilian Atlantic Forest
ABSTRACT Sustainable management of tropical and subtropical secondary forests for multiple purposes, including timber, may encourage farmers to promote regeneration of native forest. We studied the population structures and commercial timber production in two adjacent 33 years-old Brazilian Atlantic Forest stands: a 26 ha forest managed through enrichment w
Floresta Ambient.. Publicado em: 08/04/2019
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4. Physical and mechanical properties of Eucalyptus saligna wood for timber structures
Resumo A fim de auxiliar no consumo de madeira pela construção civil, o Eucalyptus saligna surge como uma boa oportunidade a ser explorada, devido à sua grande disponibilidade em florestas plantadas no Brasil. O objetivo dessa pesquisa foi determinar as principais propriedades físicas e mecânicas da madeira de Eucalyptus saligna para sua utilização na
Ambient. constr.. Publicado em: 2019-04
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5. First report of Hypsipyla grandella (Lepidoptera: Pyralidae) on African mahogany Khaya ivorensis
ABSTRACT The mahogany shoot borer Hypsipyla grandella Zeller is an important economic pest in all American tropical forests, because it prevents monoculture of valuable timber trees species like mahogany and cedar. The shoot borer damages several tree structures, especially the apical shoots, impairing the formation of the commercial stem. This pest can atta
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12
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6. Embedment strength of dowels in wood specimens according to ABNT NBR 7190 (1997) and EUROCODE 5 (2004)
Abstract The study of connections for timber structures has been the subject of intense research in Brazil. This work aimed to study the embedment strength of connections made by steel pins (dowels) in specimens of reforested woods. Analytical and experimental evaluations were considered in this study. Initially, tests on specimens made from Pinus elliottii
REM, Int. Eng. J.. Publicado em: 2017-03
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7. Relationship between density and anatomical structure of different species of Eucalyptus and identification of preservatives
The species and density of Eucalyptus wood poles installed in the electrical network are useful parameters which must be considered when it is necessary to establish the service life of these structures. In this work, eucalyptus poles samples were collected and analyzed by scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS). SEM image a
Mat. Res.. Publicado em: 10/09/2013
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8. Influence of wood moisture content on the modulus of elasticity in compression parallel to the grain
Brazilian Standard ABNT NBR7190:1997 for timber structures design, adopts a first degree equation to describe the influence of wood moisture content. Periodically, when necessary, the referred standard is revised in order to analyze inconsistencies and to adopt considerations according new realities verified. So, the present paper aims to examine the adequac
Materials Research. Publicado em: 06/03/2012
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9. Flexural behavior of Sisal/Castor oil-Based Polyurethane and Sisal/Phenolic Composites
Natural fibers used as reinforcement of polymeric composites are interesting research subjects in polymer technology. Nowadays, these materials are being considered as a way to reinforce timber structures improvement. Fibers with larger structural applications are glass and carbon fibers, however, the use of natural fibers is an economic alternative and pres
Materials Research. Publicado em: 24/02/2012
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10. Ligações estruturais para madeira roliça de Eucalyptus de pequeno diâmetro / Structural joints for Eucalyptus small diameter roundwood
As ligações em estruturas de madeira potencializam sua aplicação. Ampliam as soluções construtivas com durabilidade, resistência e segurança. Com o objetivo de desenvolver uma solução de ligação mecânica para a madeira roliça de Eucalyptus de pequeno diâmetro avaliou-se, experimentalmente, modelo de ligação estrutural, empregando barra de a�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2011
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11. Glulam-concrete composites: experimental investigation into the connection system
Timber-concrete composite structures work appropriately when a suitable connection system is included because the degree of interaction between the materials stiffs the structural system. Thereby, it is extremely important to improve the knowledge about their connection system. The purpose of this paper is to show the results obtained by experimental investi
Materials Research. Publicado em: 26/01/2011
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12. Mathematical model for timber decay in contact with the ground adjusted for the state of São Paulo, Brazil
At this moment, the environmental sustainability has been incorporated to all branches of activity more and more; timber seems to be the best alternative in civil construction. Nevertheless, for a correct and better usage of timber as a structural material, it is necessary to have a higher degree of knowledge not only of the structural mechanical behavior, b
Materials Research. Publicado em: 2010-06