贺虎成，陈  路，尹华钢，刘记军
(总装备部工程设计研究总院，北京100028)

[摘要] 北京奥运会国家体育场威亚主钢索是奥运会及残奥会开闭幕式上空表演系统的承载基础。采用有限元分析程序ANSYS，对国家体育场上空10根钢索在8种工况下的变形和受力进行了计算分析，并与理论解进行了比较。结果表明，数值计算结果与理论解基本一致，计算结果可靠。为同类索网结构的变形和受力分析提供参考。
[关键词] 国家体育场；钢索；有限元非线性分析；找形；受力分析

Calculation and Analysis of the Main Steel Cables Used for Wire Spaned the National Stadium Roof at the Beijing Olympic Games Opening and Closing Ceremony
He Hucheng, Chen Lu, Yin Huagang, Liu Jijun
( Center for Eng. Design and Research under the General Equipment Department, Beijing  100028, China)

Abstract: The carrying ropes used for wire spaned the National Stadium roof are the basic load bearing foundation of the aerial performance system at the opening and closing ceremonies for Beijing Olympic Games and Paralympic Games. The deformation and stress of the 10 steel cables and the steel supporting frame on the National Stadium roof were calculated under eight kinds of conditions by structrual analysis program ANSYS. The results show that the numerical calculation results are basically consistent with the theoretical solution, and the analysis is reliable. It has provided a reference for the analysis of deformation and stress for similar cable net structure.
Keywords: National Stadium; main steel cable; nonlinear finite element analysis; finding form; stress analysis