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賀虎成，陳 路，尹華鋼，劉記軍
(總裝備部工程設(shè)計研究總院，北京100028)[摘要] 北京奧運會國家體育場威亞主鋼索是奧運會及殘奧會開閉幕式上空表演系統(tǒng)的承載基礎(chǔ)。采用有限元分析程序ANSYS，對國家體育場上空10根鋼索在8種工況下的變形和受力進行了計算分析，并與理論解進行了比較。結(jié)果表明，數(shù)值計算結(jié)果與理論解基本一致，計算結(jié)果可靠。為同類索網(wǎng)結(jié)構(gòu)的變形和受力分析提供參考。
[關(guān)鍵詞] 國家體育場；鋼索；有限元非線性分析；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
