结构用竹集成材研究进展  

Research Progress of Structural Laminated Bamboo Lumber

作　　者：陶钧 谢力生[1] 刘嘉诚 沈梦阳 TAO Jun;XIE Li-sheng;LIU Jia-cheng;SHEN Meng-yang(Central South University of Forestry and Technology,Changsha 410004,China)

机构地区：[1]中南林业科技大学,长沙410004

出　　处：《林产工业》2020年第12期16-21,共6页China Forest Products Industry

基　　金：湖南省高校创新平台开放基金(19K110,14K113);国家自然科学基金项目(5173641091)。

摘　　要：竹子生长速度快、强度高、资源丰富,以竹代木生产需求日益增长的结构用集成材,具有重要意义。但竹子具有中空、带竹节、各向异性、内外壁材质差异大等特点,直接用竹片组坯制造集成材,产品难以达到结构用材要求。为此,就竹节、竹龄、部位和含水率等对毛竹竹材物理力学性能的影响,及毛竹片密度与力学性能之间的关系等现有相关研究进行归纳总结;对几种常见的竹集成材进行分析比较,并重点对结构用竹集成材中最具开发潜力的侧压型规格竹片集成材进行介绍;对规格竹片接长与分级,以及分级竹片或竹层板与产品力学性能的相关性等方面的研究进行梳理和总结,指出研究中存在的问题;并提出今后结构用竹集成材研究需重点关注的几个问题。Bamboo is one of the fast-growing,high-strength and resource-rich materials.With the increasing shortage of industrial wood,the demand for structural laminated bamboo lumber has gradually increased.Industrial timber can be replaced by structural laminated bamboo lumber,which has great significance.The characteristics of bamboo are hollow,containing nodes,anisotropy,and having large differences between the inner and outer part of culm.So,laminated bamboo lumber composed by bamboo splits was hardly meet the standard of construction materials.Therefore,in this paper,the influencing factors of bamboo nodes,growth age,location and moisture content on the physical and mechanical properties of moso bamboo,and the relationship between the density and mechanical properties of bamboo strips was summarized.Several common glued laminated bamboos were analyzed and compared,the side-pressure dimensional bamboo strip which is the most potential development material in structural glued laminated bamboo was introduced vitally.The joint and classification of dimensional bamboo strip,and the correlation between the graded bamboo strip or bamboo lamination and the mechanical properties of the products were reorganized and summarized.Then,several issues were proposed.At last,several issues about structural glued laminated bamboo that need to be focused were prospected.

关 键 词：竹集成材 毛竹 规格竹条 分级 竹层板 

分 类 号：TS653[轻工技术与工程]