弦支穹顶结构类型及工程应用实例

Structural types of chord-supported domes and examples of engineering applications

弦支穹顶结构由上部单层网壳、下部竖向撑杆以及拉索组成,它是结合了网壳结构和索穹顶结构的优点后发展起来的一种预应力空间结构体系。随着理论研究与工程应用的不断深入,已逐步显示出广阔的应用前景,弦支穹顶结构类型也得到了不断的创新和拓展,在总结已有结构形式的基础上,根据上部刚性结构以及下部索杆体系的类别对弦支穹顶结构进行了系统的分类,以此为基础并应用于工程实践中。

The string-supported dome structure is composed of the upper single-layer reticulated shell,the lower vertical struts and the cables.It is a prestressed space structure system developed by combining the advantages of the reticulated shell structure and the cable dome structure.With the deepening of theoretical research and engineering application,it has gradually shown broad application prospects,and the types of string-supported domes have also been continuously innovated and expanded.On the basis of summarizing the existing structural forms,according to the upper rigid structure and lower The category of cable-and-rod system systematically classifies the dome structure with chord support,which is based on this and applied in engineering practice.