结构用纤维化竹单板层积材的耐久性能  

Durability of Structural Bamboo Laminated Veneer Lumber

作　　者：于雪斐[1] 祝荣先[1] 于文吉[1] 

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091

出　　处：《东北林业大学学报》2013年第4期104-107,共4页Journal of Northeast Forestry University

基　　金：国家"863"计划项目(2010AA101701)

摘　　要：以慈竹为材料,制造竹材单板层积材,通过耐老化性和耐疲劳性评价板材的耐久性能,其中耐老化性能测试包括30 d吸水厚度膨胀试验、湿热循环老化试验和6循环加速老化试验。结果表明:纤维化竹单板层积材具有优良的力学性能,密度大的板材具有更好的尺寸稳定性;加速老化后,板材性能未有明显的下降。另外,在交变载荷循环次数为106次水平下,板材依然保持较好的耐疲劳性能。Bamboo laminated veneer lumber （BLVL） from Bambusa distegia was conducted to evaluate its aging resistance and fatigue durability including the 30-day thickness swelling, humidity-thermal cycle aging and six-circle accelerated aging experiences. The results show that BLVL has the high mechanical performance, BLVL with higher density has better dimension stability, the properties of BLVL has no significant change after accelerated aging, and BLVL maintains good fatigue durability under 10^6 fatigue load.

关 键 词：纤维化竹单板层积材 耐老化 耐疲劳 

分 类 号：S795.5[农业科学—林木遗传育种]