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（1 北京市建筑設計研究院 北京 100045；2 清華大學土木工程系 北京 100084）
【提要】 青島國際帆船中心是2008年奧運會帆船帆板比賽用場地之一，其鋼屋面結(jié)構(gòu)比較特殊，單榀平面結(jié)構(gòu)為圓弧形H型鋼梁和圓管柱鉸接而成。介紹了特征值屈曲分析和非線性有限元全過程跟蹤分析方法在結(jié)構(gòu)整體穩(wěn)定分析中的應用，以及鋼屋面結(jié)構(gòu)體系的布置情況和結(jié)構(gòu)的空間受力體系，供類似工程參考。
【關(guān)鍵詞】 鋼屋蓋 穩(wěn)定分析 特征值屈曲分析 非線性有限元 全過程跟蹤分析
Stability Analysis and Design of Steel Roofing of Tsingdao International Sailboat Center/
Yang Yong1, Li Weizheng1, Sheng Hetai2 (1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)
Abstract:The steel roof of Tsingdao international sailboat center for 2008 Olympic Games is so special that its shape is of an arc, which is made up of Hbeam and pipe column.
It is introduced how to analyze integral stability performance of the structure applying eigenvalue buckling analysis and all course tracing by nonlinear finite elements. According to the results,the roofing structure is arranged, which is composed of the whole spatial structure system.
Keywords:steel roof; stability analysis; eigenvalue buckling analysis; all course tracing; nonlinear finite element