Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/12231
Title: Módulo de elasticidade aparente em vigas roliças estruturais de madeira Pinus elliottii
Keywords: Pinus elliottii - Elasticidade
Madeira - Rigidez
Teoria de vigas
Vigas roliças
Issue Date: Jan-2014
Publisher: Associação Nacional de Tecnologia do Ambiente Construído
Citation: ZANGIÁCOMO, A. L.; CHRISTOFORO, A. L.; ROCCO LAHR, F. A. Módulo de elasticidade aparente em vigas roliças estruturais de madeira Pinus elliottii. Ambiente Construído, Porto Alegre, v. 14, n. 1, p. 7-13, jan. 2014.
Abstract: This study investigates the influence of the measurements between the length (L) and diameter (d) of Pinus elliottii round timber structures to determine the modulus of elasticity (MOE), using the Brazilian standard ABNT NBR 7190:1997 (Design of Wood Structures) and the three-point static bending test. 24 pieces of green wood with an average length of 750 cm and average diameter of 30 cm were tested nondestructively. In order to do that, the values of the modulus of elasticity for six different ratios (L/d) between length and diameter (9, 12, 15, 18, 21, 24) were determined, producing six different values of MOE for each structural element. The ANOVA results indicated equivalence of the modulus of elasticity only between the L/d relations equal to 24, 21, 18 and 15, where 15 proved to be the smallest value able to alleviate the shear effect. This implies that for the proper use of the equation to obtain the elastic modulus by the Brazilian standard for Pinus elliiottii structural round timber, it is necessary to respect the L/d≥15 relation.
URI: http://seer.ufrgs.br/index.php/ambienteconstruido/article/view/36248
http://repositorio.ufla.br/jspui/handle/1/12231
Appears in Collections:DEG - Artigos publicados em periódicos

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