Glulam
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Number of laminae on the mechanical behavior of glued laminated timber (glulam) of Toona ciliata produced with vegetable polyurethane adhesive
RESUMO A madeira laminada colada (MLC) é um material compósito obtido a partir da colagem de lâminas de madeira dispostas com as fibras paralelas entre si. O objetivo deste trabalho foi avaliar a influência do número de lâminas no comportamento mecânico de MLC de Toona ciliata produzidas com adesivo poliuretano de base vegetal. As vigas de MLC foram p
Ciênc. agrotec.. Publicado em: 20/12/2019
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2. Schizolobium Parahyba var. Amazonicum Glulam Classified by Non-destructive Tests
ABSTRACT The objectives of this study were to evaluate the relationship between the density and the EW (modulus of elasticity) values obtained by two non-destructive methods: the accuracy of an expeditious method using a graduated ruler; and the homogenization of elasticity between the methods for glulam elements. In the analysis, displacements were measure
Floresta Ambient.. Publicado em: 08/04/2019
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3. Use of Hevea brasiliensis Rubberwood for Glulam Beam Production
ABSTRACT In Brazil, Hevea brasiliensis plantations are principally destined for latex production. In the national literature however, there are few studies on the mechanical properties of rubberwood. This study aimed to evaluate the potential of rubberwood in the manufacture of glulam beams (VLC), through the use of pieces of sawn wood of H. brasiliensis clo
Floresta Ambient.. Publicado em: 08/03/2018
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4. Evaluation of Tensile Strength of a Eucalyptus grandis and Eucalyptus urophyla Hybrid in Wood Beams Bonded Together by Means of Finger Joints and Polyurethane-Based Glue
Created in the 1940s, the splice finger-joint type for wood has now been more used to compose structural materials wood base as Glued Laminated Timber (Glulam) and Cross Laminated Timber (CLT). The main advantage of this amendment is to provide a simple and economical way to join timber parts on segments. This study evaluated by means of tensile tests the ca
Mat. Res.. Publicado em: 22/09/2016
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5. Madeira Laminada Colada (MLC): controle de qualidade em combinações espécie-adesivo -tratamento preservativo / GLULAM: quality control in combinations of species-adhesive-preservative treatment
A Madeira Laminada Colada (MLC) é um produto engenheirado que requer precisão de fabricação em todos os seus estágios. O produto acabado pode somente ser testado em condições laboratoriais, entretanto é necessário o controle de qualidade na sua produção para assegurar que suas propriedades sejam conformes aos requisitos especificados para o produt
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2011
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6. 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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7. Propriedades tecnológicas de vigas de madeira laminada colada produzidas com louro-vermelho: (sextonia rubra)
The objective of this study was characterize the technological behavior of glulam beams (MLC) using the wood from Louro Vermelho (Sextonia rubra Lauraceae), through the evaluation of the adhesion with adhesive resorcinol-formaldehyde and evaluate theoretically and experimental the modulus of elasticity (EM), the modulus of rupture (fM), the bending moment (M
Publicado em: 2009
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8. Timber-concrete composite structures: evaluation of GFRP reinforced glulam beams / Estruturas mistas de madeira-concreto: avaliação das vigas de madeira laminada colada reforçadas com fibras de vidro
No cenário da produção de edificações sustentáveis, a madeira laminada colada (MLC) ocupa lugar de destaque, sobretudo pela possibilidade de emprego de madeiras provenientes de florestas plantadas. Com o propósito de amenizar os problemas de durabilidade, quando exposta às intempéries, uma solução pressupõe a associação das vigas de MLC com um
Publicado em: 2009
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9. Pullout strength of axially loaded steel rods bonded in glulam at a 45º angle to the grain
This paper presents an experimental analysis of the pullout strength of bonded and axially loaded steel rods used as connector elements in log-concrete composite bridge decks. Static and cyclic tests were carried out to evaluate the fatigue of the connectors using two species of reforested wood, three types of commercial adhesives and three levels of wood mo
Materials Research. Publicado em: 2009
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10. Avaliação do comportamento mecânico ao cisalhamento de conectores de barras de aço com ganchos em vigas mistas de madeira laminada colada e concreto
The main objective of this work was to propose a reference specimen for the push-out test of rod-type fasteners in timber-concrete connections. The following experimental tests have been performed in order to achieve the goals of this research: pull-out tests of bonded-in steel rods in wood specimens, pull-out tests of bonded-in steel rods in concrete specim
Publicado em: 2008
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11. Study of adhesion time, temperature and gluing pressure on shear strength of Eucalyptus grandis wood glued with adhesive solvent free / Estudo do tempo de adesão, da temperatura e da pressão de colagem na tensão limite de cisalhamento de uniões de madeira de Eucalyptus grandis coladas com adesivo sem solvente
The use of glu-lam is a viable alternative for exploitation of all wood potential presenting a series of advantages. The linking between layers however has a basic paper in glu-lam good quality. Therefore for a good performance of glu-lam structures it is fundamental the choice of an adhesive which has a great mechanics resistance and also resistance to the
Publicado em: 2007
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12. Fiberglass-reinforced glulam beams: mechanical properties and theoretical model
The glued-laminated lumber (glulam) technique is an efficient process for making rational use of wood. Fiber-Reinforced Polymers (FRPs) associated with glulam beams provide significant gains in terms of strength and stiffness, and also alter the mode of rupture of these structural elements. In this context, this paper presents a theoretical model for designi
Materials Research. Publicado em: 2006-09