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张拉结构是由不连续的受压构件和连续的受拉绳索组成的特殊结构体系。由于其轻质、非连续,容易形成大跨度,从1960年代提出后,就成为国际研究热点。传统张拉结构通常是杆索结构,存在自由度大,力学性能不确定,空间找形和布局困难。本项目提出了用三维受压构件代替一维受压杆的三维张拉结构的概念,研究三维实体在非连续张拉系统中的性质与运用。采用几何拓扑方法对若干空间几何体进行分类,发现其一个到多个方向的延展特性,来组成一到三维空间结构,最后建立物理模型。本项研究拓展了传统张拉结构理论,为含三维构件的张拉结构发展提供了新的蓝图。
Tensile structure is composed of a discontinuous compression member and a continuous tensioned rope composed of a special structural system. Because of its light, non-continuous, easy to form a large span, since the 1960s, it has become an international research hotspot. The traditional tension structure is usually a cable structure, which has the advantages of large degree of freedom, uncertain mechanical properties, space finding and layout difficulties. This project proposed the concept of using 3D compression members instead of the three-dimensional tension structure of one-dimensional compression rod to study the nature and application of three-dimensional solid in discontinuous tensioning system. Geometric topological methods are used to classify a number of spatial geometries and discover their extended characteristics in one or more directions to form a three-dimensional spatial structure. Finally, a physical model is established. This study expands the traditional theory of tension structure and provides a new blueprint for the development of tension structure with three-dimensional components.