%0 Journal Article
%T 竹集成材研究进展
%A 李海涛
%A 张齐生
%A 吴刚
%A 熊晓洪
%A 李延军
%J 林业工程学报
%D 2016
%R 10.13360/j.issn.2096-1359.2016.06.002
%X 竹材是一种环境友好、可循环使用的绿色建材,但原竹尺寸较小、刚度较低,从而制约其推广应用。竹集成材是将速生、短周期的竹材加工成定宽、定厚的竹片,干燥至8%～12%的含水率,再通过胶黏剂将竹片胶合而成的型材。目前的生产工艺可以灵活控制其构件尺寸和长度,具备良好的推广应用前景。首先介绍了国内外竹集成材的生产工艺研究和发展概况,指出研发耐久性较强而又不减弱竹集成材力学性能的方法,以及提高竹集成材产品生产的机械化自动化程度是生产工艺研究的主要发展方向; 随后从材性和构件两个方面阐述了国内外竹集成材基本力学性能研究进展,提出了该研究领域急需解决的问题,如各种复杂条件和复杂应力下竹集成材的本构模型、破坏准则及构件的力学计算模型等; 最后介绍了竹集成材标准现状。</br>Bamboo is a green construction material which has advantages of sustainability, environmental friendliness, and the capability of being reused or recycled. Although bamboo is a promising wood substitute, its application is limited by the diameter of the bamboo culm and the low rigidity. In order to extend the application by enhancing the dimensional consistency, strength and uniformity, the bamboo culm(usually 4-6 years)could be disassembled into thin flat laminates with a certain width and thickness. After being dried to a moisture content of 8%-12% and removed the inner part and outer part, these flat laminates were glued together to form laminated bamboo lumber(LBL). The component size and length could be flexibly controlled by the current production technology, which provides LBL with a bright application future. This paper was focused on the review of research progresses of the structural LBL domestically and world-wide. Firstly, based on the introduction of research and development situation on LBL manufacturing technology, two main research development directions were pointed out, which were strong durability LBL products and production automation improvement. Secondly, the research about the basic mechanical properties of LBL was elaborated from two aspects, which were material performance and structural member behavior. Then the research problems needed to be solved were proposed, such as constitutive model and failure criterion of LBL materials under complex conditions and complex stress, mechanics calculation model for the structural members under complex conditions and complex stress. Finally, the current situation of LBL standards was introduced and the LBL standards need to be developed in the future were proposed
%K 竹集成材
%K 生产工艺
%K 力学性能
%K 竹集成材标准&lt
%K /br&gt
%K laminated bamboo lumber
%K production technology
%K mechanical properties
%K laminated bamboo lumber standard
%U http://lkkf.njfu.edu.cn//oa/darticle.aspx?type=view&id=201606002