(1 中国航空规划建设发展有限公司，北京 100120；2 北京科技大学 100083； 3 北京工业大学 100124)
［摘要］以成都金沙遗址博物馆中庭屋顶轮辐式双层索网结构为研究对象，分析了结构在不同荷载分布情况下的静、动力性能。考虑几何非线性、材料非线性和几何初始缺陷，研究了不同矢跨比、预应力度对轮辐式双层索网结构内力、变形以及整体稳定性能的影响，结论对同类工程设计具有参考意义。
［关键词］轮辐式结构；双层索网结构；临界预应力值；结构稳定性能
Design and research of spoke double layer cable-net structure
Yang Xiao1，Zhang Guojun1，Guan Zhizhong1，Ge Jiaqi1，Liang Yishan2,Hu Yang3(1 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China； 2 University of Science and Technology Beijing, Beijing 100083, China; 3 Beijing University of Technology, Beijing 100124, China)
Abstract:The spoke rung double layer cable-net structure of the roof of the cortile in Chengdu Jinsha Site Museum, is selected to investigate the structural static and dynamic performance subject to different load cases. Considering geometric and material nonlinearity and initial geometric imperfection, it is studied that the different ratio of rise to span and the prestressed ratio impact on the structural internal force, deformation and overall stability. The conclusion provides some references to design of the other similar spoke structure project.
Keywords:spoke structure; double-layer cable-net structure; critical pre stressing; structural stability performance
作者简介：杨霄(1977-)，男，工程师，Email:Mulang.yang@126.com。
参考文献
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［2］袁行飞.索穹顶结构截面和预应力优化设计［J］.空间结构，2002，8(3)：51-56.
［3］沈世钊，徐崇宝，赵臣.悬索结构设计［M］.北京：中国建筑工业出版社，1997.