Development and Applications of Laminated Veneer Lumber
Laminated Veneer Lumber (LVL) is a wood-based composite manufactured by gluing thick veneers parallel to the grain direction, which can be resawed to various sizes. As a building material, the ratio of strength to weight of LVL surpasses that of the steel products, and its fire resistant performance surpasses that of the lumber. LVL relatively has homogenous properties due to dispersion of defects in each veneer layers. The manufacturing technology enables its dimension not to depend on the diameter of logs or on the quality of veneers. Therefore LVL may satisfy the needs for long-span beams and for vehicle and ship building. The laminated structure of LVL makes it to have a good stability with reduced warp, and distortion and deformation because of elimination of residual stresses that usually happens with solid wood. Composed of layers bonded together with the waterproof adhesive, it has better weatherability compared to other wood-based composites. Besides, it has a strong ability to absorb impacts and to resist fatigue failures caused by the cyclic loading. The stability of buildings constructed with LVL in earthquake has already been tested repeatedly. The advantage of LVL lies in that it may manufactured with raw materials of different wood species and different quality for many applications.
Bing Xue Yingcheng Hu Li Zhang Fangchao Cheng Yanna Li
Northeast Forestry University, Harbin, China Heilongjiang Institute of Science and Technology, Harbi Northeast Forestry University, Harbin, China
国际会议
International Symposium on Wood Science and Technology(IAWPS 2008)(国际木材产品学会联合会2008学术研讨会)
哈尔滨
英文
421-422
2008-09-27（万方平台首次上网日期，不代表论文的发表时间）