北京蘆城自行車館結構設計
范強1，朱忠義1，王毅1，秦凱1，常堅偉1，李云2
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(1 北京市建筑設計研究院，100045； 2 北京交通大學，100044)［提要］北京蘆城自行車館平面近似橢圓形，屋蓋形狀為雙曲面。屋蓋及屋蓋支承為整體鋼結構，看臺、附屬用房采用混凝土結構。對混凝土抗裂采用新型纖維混凝土，取得了很好的抗裂效果。對空腹剛架的平面內(nèi)穩(wěn)定做了較為細致的分析，給出了空腹剛架弦桿及節(jié)間計算長度的計算方法，比較了不同的鋼結構下部支撐剛度對鋼結構構件內(nèi)力和位移的影響，得出環(huán)向桁架的剛度是影響環(huán)向支承結構剛度的決定因素，空間支承鋼柱的剛度對環(huán)向支承結構的剛度影響非常小，基本可以忽略。考慮了上部膜結構參與工作對計算結果的影響，進行了結構驗算，保證了結構安全可靠。［關鍵詞］空腹網(wǎng)殼；膜結構；環(huán)形支承結構；穩(wěn)定；溫度內(nèi)力Structural Design of Beijing Lucheng Ti Xiao Bicycle Training Centre/Fan Qiang1,Zhu Zhongyi1,Wang Yi1,Qin Kai1,Chang Jianwei1,Li Yun2 (1 Beijing Institute of Architectural Design, Beijing 100045, China;2 Beijing University of Jiaotong, Beijing 100044,China)Abstract: Beijing Lucheng Ti Xiao bicycle training centre has an ellipse plan and a hyperbolic roof shape with maximum height as 32.5m. The roof and supporting members are all steel structure, meanwhile the bleachers and subsidiary space are made of reinforced concrete. It mainly introduces the design and application characteristics of the key technical used in the project. Utilizing new type fiber concrete to deal with concrete cracking is effective. In addition, the in plane stability of the fasting frame has been researched accurately. The method to calculate chord and the internode length of the frame has been provide, the influence of different stiffness within lower steel supports on the internal forces and displacements of structure members has been compared, and that the stiffness of circle truss is the key element to determine the stiffness of supporting members has been concluded. Since the influence due to the stiffness of space supporting steel column is not obvious, this factor can be ignored. Considering the work done by upper membrane structure, and double checking, this method guarantees the structural safety and reliability well.Keywords: hollow web latticed shell; membrane structure; tension ring; stability; temperature inforce
