木空间结构研究现状及关键问题
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（同济大学土木工程学院，上海 200092）
［摘要］木材具有绿色环保、轻质美观等诸多优点，在我国的应用逐渐增多，空间结构是其中一种结构形式。木空间结构主要可以分为木空间网格结构和木空间张拉结构。以一些典型木空间结构为例，综述了木空间结构在形态分析、数值模拟、长期荷载作用下性能、节点研究、可靠性研究等几方面的现状。提出了木空间结构研究需要解决的关键问题，包括材料本构模型的建立与选用、木材在长期荷载作用下的蠕变问题、试验研究和数值模拟方法、结构动力特性和动力响应以及结构体系的可靠性研究等。［关键词］木结构; 空间结构; 数值模拟; 长期荷载; 研究现状中图分类号：TU366.2 文献标识码：A 文章编号：1002-848X(2016)12-0103-07
State-of-the-art and key research topics of timber spatial structuresHe Minjuan, Dong Hanlin, Li Zheng(College of Civil Engineering, Tongji University, Shanghai 200092, China)Abstract: Timber has many advantages including environmental-friendly, low self-weight and nice-appearance. Applications of timber structures in China has been growing. Spatial structure is one of the suitable forms of timber structures. Timber spatial structures can be divided into two categories: timber reticulated spatial structures and timber tensile structures. A broad state of the art review of timber spatial structures on form-finding, numerical simulation, long-term performance, joint performance and reliability analysis was presented. Several key research topics on timber spatial structures to be further explored were identified and discussed. These topics include the construction and application of constitutive law of the material, creep under long-term loading, experimental study, numerical simulation mothod, dynamic properties and response, system reliability assessment of the structure.Keywords: timber structure; spatial structure; numerical simulation; long-term loading; state-of-the-art
作者简介：何敏娟，教授，博士生导师，Email:hemj@tongji.edu.cn。
