- 摘 要
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（北京市建筑設(shè)計研究院，北京 100045）
【提要】 煙臺體育中心體育場罩棚跨度45m，由兩片月牙造型的空間結(jié)構(gòu)組成，采用骨架和張拉結(jié)合的膜結(jié)構(gòu)，主受力結(jié)構(gòu)由帶大型拉壓桿的立體桁架和跨度284m的拱架組成。結(jié)構(gòu)的桿件選用圓鋼管，節(jié)點為相貫焊接節(jié)點，膜材選用PVC材料。結(jié)合具體的結(jié)構(gòu)設(shè)計，詳細介紹了罩棚的結(jié)構(gòu)體系；分析了結(jié)構(gòu)的靜力性能、動力特性以及溫度對結(jié)構(gòu)的影響。對結(jié)構(gòu)穩(wěn)定的研究結(jié)果表明結(jié)構(gòu)穩(wěn)定滿足規(guī)范要求，不會發(fā)生整體屈曲。介紹了結(jié)構(gòu)優(yōu)化和節(jié)點設(shè)計的基本內(nèi)容。
【關(guān)鍵詞】 屋蓋結(jié)構(gòu) 膜結(jié)構(gòu) 結(jié)構(gòu)體系 靜力特性 穩(wěn)定性
Roof Structure Design of Yantai Sport Center Stadium/Zhu Zhongyi, Ke Changhua, Gan Ming, Ding Zhijuan, Sun Yuexian(Beijing Institute of Architectural Design, Beijing 100045,China)
Abstract:The combination of skeleton membrane structure and tension membrane structure is adopted in the Yantai Sport Center Stadium roof with 45m span which is composed two crescenttype spatial structures. The main structure is spatial truss with large tension bar and compression bar and arch truss with 284m span. In which, circular hollow sections are used as chord members and web members, the directly welded joints are used and PVC material is used as membrane.The static and dynamic performance and influence of temperature load on structure are analyzed. The result of stability analysis satisfies codes and the structure would not buckle. The optimizations of structural design and node design are introduced.
Keywords:membrane structure; roof structure；structural system；static characteristic；stability
