桉树胶合木全尺寸梁的试验研究

IF 1.2 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Maderas-ciencia Y Tecnologia Pub Date : 2022-11-01 DOI:10.4067/s0718-221x2023000100405

R. Nogueira, F. Icimoto, Carlito Calil Junior, F. A. Rocco Lahr

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引用次数: 1

摘要

工程木制品需要替代其生产的原材料。杂交尤加利在满足这一工业部门的需求方面具有巨大的潜力。在此背景下，本文旨在分析桉树在胶合木材(胶合木)生产中的可行性。为此，制作并测试了四组，每组10根胶合木梁。为了确定梁的刚度和抗弯强度，进行了广泛的实验程序;梁的抗压强度平行于柱纹。通过胶线剪切试验，验证了结构胶粘剂的性能。试验刚度均值大于14675 MPa，抗压强度平行于晶粒的特征值大于40 MPa。然而，胶合木梁的破坏模式显示手指连接降低了抗弯强度。用尤加利生产的胶合木梁由于其力学性能被证明是一种可行的替代方案。然而，这种材料在手指关节粘附方面存在困难。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental study on full-scale glulam beams manufactured with Eucalyptus urograndis

Engineered wood products need alternatives of raw materials to their production. The hybrid Eucalyptus urograndis has great potential to supply the demand of this industrial sector. In this context, the present paper aims to analyse the feasibility of using Eucalyptus urograndis in glued laminated timber (glulam) production. To this end, four groups with ten glulam beams each, were produced and tested. An extensive experimental program was performed in order to determine: the stiffness and bending strength of the beams; and the com - pression strength parallel to grain of the beams. The performance of structural adhesives was verified based on shear tests of glue lines. The experimental mean of stiffness was higher than 14675 MPa and the characteristic value of compression strength parallel to grain achieved a value above 40 MPa. Nevertheless, failure mode of the glulam beams showed that finger-joints reduced bending strength. The glulam beams produced with Eucalyptus urograndis proved to be a feasible alternative due to their mechanical properties. However, this material presents difficulties in finger-joints adhesion.

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来源期刊

Maderas-ciencia Y Tecnologia 工程技术-材料科学：纸与木材

CiteScore

2.60

自引率

13.30%

发文量

审稿时长

>12 weeks

期刊介绍： Maderas-Cienc Tecnol publishes inedits and original research articles in Spanish and English. The contributions for their publication should be unpublished and the journal is reserved all the rights of reproduction of the content of the same ones. All the articles are subjected to evaluation to the Publishing Committee or external consultants. At least two reviewers under double blind system. Previous acceptance of the Publishing Committee, summaries of thesis of Magíster and Doctorate are also published, technical opinions, revision of books and reports of congresses, related with the Science and the Technology of the Wood. The journal have not articles processing and submission charges.