（1 湖南省建筑设计院有限公司， 长沙 410012；  2 东南大学土木工程学院， 南京 211189）

［摘要］张家界大成俄罗斯马戏城主馆屋盖采用弦支穹顶结构，屋盖中部吊挂一个大型空中舞台，属于复杂大跨度空间结构。介绍了该屋盖的结构布置并研究了结构的静力和动力特性，特别是悬挂舞台对结构动力特性的影响，对结构进行多遇地震、设防地震及罕遇地震下的性能复核。结果表明，结构构件均能满足既定的性能目标。

［关键词］弦支穹顶； 大跨度空间结构； 动力特性； 性能目标

中图分类号：TU394文献标识码：A文章编号：1002-848X(2020)20-0049-05

Structural design on the suspendome of  roof of  Dacheng Russian Circus City main pavilion in Zhangjiajie

WANG Siqing1, CHEN Feng1, PAN Rui2

(1 Hunan Provincial Architectural Design Institute Co., Ltd., Changsha 410012, China;2 School of Civil Engineering, Southeast University, Nanjing 211189, China)

Abstract:The roof of Dacheng Russian Circus City main pavilion in Zhangjiajie adopts the suspendome structure, and a large aerial stage is hung in the middle of the roof, which is  complex large-span spatial structure. The structural arrangement of the roof was introduced, and the static and dynamic characteristics of the structure were studied, especially the influence of the suspended stage on the dynamic characteristics of the structure. The performance of the structure under frequent earthquakes, fortified earthquakes and rare earthquakes was also reviewed. The results show that all the structural components can meet the established performance objectives.

Keywords:suspendome； large-span spatial structure； dynamic characteristic； performance objective

作者简介：王四清，学士，研究员级高级工程师，一级注册结构工程师，Email:ag5678@163.com。