(中南林业科技大学家具与艺术设计学院， 长沙 410004)

［摘要］国产人工林木材生长快、砍伐期短、力学强度低，难以达到木质桥梁工程材的要求。因此，以玻璃纤维布、铝箔为增强材料，对木材进行多材料之间的复合增强，并采用非线性有限元方法分析复合增强的行为特征。分析结果表明：在平面受压时，玻璃纤维布、铝箔具有明显增强效果，但在断面受压时无明显增强效果；组坯方式不同，玻璃纤维布、铝箔的增强效果也不同；试件跨度、厚度和长度对极限承载力的影响具有交互作用。

［关键词］国产人工林; 胶合木; 复合增强; 有限元分析

中图分类号：TU366.2       文献标识码：A       文章编号：1002-848X(2014)09-0083-06

Nonlinear finite element analysis on reinforced effect of domestic laminated timber

Zhang Zhongfeng, Zhou Xianyan

 (Furniture and Art College, Central South University of Forestry and Technology, Changsha 410004, China)

Abstract: Domestic plantation wood, which has fast growth, short cutting period and low mechanical strength, is difficult to achieve the requirements of wooden bridge engineering material. Therefore, the glass fiber cloth and aluminum foil acted as reinforcing material, and the reinforced behavior of multifunctional composite reinforced material was analyzed by the nonlinear finite element. The results show that glass fiber cloth and aluminum foil have obvious reinforced effect under flat pressure, but have no obvious reinforced effect under side pressure，and glass fiber cloth and aluminum foil have the different reinforced effect resulting from the different assembly methods. Furthermore, the interaction effects of span, thickness and length are exerted on the ultimate bearing capacity of laminated timber.

Keywords: domestic plantation; laminated timber; composite reinforcement; finite element analysis

*国家引进国际先进林业科学技术项目(2012-4-27)，湖南省教育厅高等学校科学研究优秀青年项目（12B134）。

作者简介：张仲凤，博士，副教授，Email：csfuzzf@163.com。

参考文献

［1］殷亚方,姜笑梅,吕建雄,等. 我国桉树人工林资源和木材利用现状［J］.木材工业,2001,15(5): 3-5.

［2］王喜明,江泽慧,费本华. 桉树人工林木材加工过程中几个问题的探讨［J］.世界林业研究,2003, 16(13): 62-64.

［3］彭万喜,吴义强,武书彬,等. 尾巨桉木材微/纳米粒子溶出规律的研究［J］.中国造纸学报,2009, 24(1):42-45.

［4］SPENCE M. Bridging the credibility gap: developing the use of treated softwoods for timber bridge structures［J］. Journal Institute of Wood Science, 2002, 16(91): 24-26.

［5］MOODY R C. Glued-laminated timber research at the forest products laboratory［J］. Forest Products Journal, 1970, 20(9):81-86.

［6］HARVEY B, BLANKENHORN PAUL R, JANOWIAK JOHN J, et al. Northern red oak glued-laminated timber bridge［J］. Journal of Bridge Engineering, 1999, 4(4):269-278.

［7］YOUNGQUIST J A, GROMALA D S, JOKERST R W, et al. Design,fabrication,testing and installation of a press-lam bridge［J］. Madison WI:Forest Products Lab, 1979.

［8］BARRETO A M J P, CAMPILHO R D S G, DE MOURA M F S F, et al.Repair of wood trusses loaded in tension with adhesively bonded carbon-epoxy patches［J］. Journal of Adhesion, 2010, 86(5-6):630-648.