现代竹结构的研究与工程应用

RESEARCH AND APPLICATION OF MODERN BAMBOO STRUCTURES

  • 摘要: 竹材是世界上为数不多的可再生资源,是建筑行业的理想材料。随着经济社会的发展、科学技术的进步、国家政策的推动,全生命周期均可实现与生态环境协调共存的竹结构是未来发展方向之一。虽然从基本方法与手段上,竹结构的研究可以从已经较为成熟的传统结构研究中汲取经验,但是,竹材的特殊使得竹结构在构件、节点以及体系构成上与传统结构存在显著差别,且目前针对竹结构的研究尚缺乏统一材料本构,手段也较为单一,节点连接形式局限性大,均限制了竹结构在工程中的广泛应用。结合已有成果,对竹结构中所涉及的竹材、竹构件、节点的力学性能作出分析;结合现代科技,对竹结构体系进行研究、总结。提出一种喷涂复合砂浆-原竹骨架组合结构体系,其整体力学性能好,功能性和适应能力强,施工速度快,可代替传统砖混结构,在低层房屋及村镇建筑中应用,具有较高的推广价值。

     

    Abstract: Bamboo is one of the renewable resources in the world. It is an ideal material for building industry because of its good mechanical properties. With the improvement of social economy, the development of science and technology, and the promotion of national policy, bamboo structures will be one of the development directions in the future. This is mainly because the whole life cycle of bamboo structures can achieve co-existence with an ecological environment. The basic methods for the research of bamboo structures can learn from more mature traditional structural studies. However, bamboo is the foundation of bamboo structures. This special material makes bamboo structures different from traditional structures in terms of members, joints and systems. At present, the research on bamboo structures lacks uniform material constitutive. Not only that, but the research methods are single, and the connection forms of nodes are limited. The above-mentioned problems limit the wide application of bamboo structures in engineering. An overall review is given on mechanical properties of bamboo, bamboo members and joints, as well as common bamboo structural systems based on published literatures and authors' research work. The structural system of sprayed composite mortar-original bamboo has a good mechanical behavior, functionality, adaptability, and efficiency. It can replace traditional brick concrete structures and is applied to township and rural low-rise buildings. The structural system of sprayed composite mortar-original bamboo has high application value.

     

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