- 摘 要
-
［摘要］中國(太原)煤炭交易中心的展覽中心采用大跨度螺旋形管桁架結構形式，中央?yún)^(qū)采光頂采用新型索網(wǎng)與索穹頂組合結構。全面介紹了展覽中心工程結構設計中的關鍵技術問題。利用Rhinoceros曲面建模軟件建立了大跨度鋼結構精確的三維空間幾何模型與計算模型，通過風洞試驗及有限元分析方法,得到結構的等效風荷載?；趯θS地震作用、各類重力荷載、支座位移及溫度作用下的結構響應，經驗證結構是安全可靠的。在設計中，采用起拱滑移同步等比卸載技術有效降低了結構空間尺度，達到最佳建筑及經濟效果。
［關鍵詞］鋼結構；展覽中心；大跨度；同步卸載；同步滑移；索網(wǎng)穹頂
中圖分類號：TU394文獻標識碼：A文章編號：1002-848X(2011)09-0016-06
Structural design for the exhibition center in China Coal Trading Center of Taiyuan
Hu Zhengping1,2, Li Ting2, Zhao Nan2, Li Rui2(1 China University of Mining and Technology, Beijing 100083, China;2 Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:The main structure of the exhibition hall of China Coal Trading Center (Taiyuan) is formed by a large-span truss system, which is composed by spirally arranged trusses. The truss system performs a spiral-up way of composing. The lightening roof in the center of the exhibition hall adopts a new type of the cable suspended dome. The key technical issues in the structural design are presented and explained in details. A precise 3D geometry modeling for structural calculation of the system is carried out by Rhinoceros software. Equivalent structural wind loads were obtained by both wind tunnel experiment and finite element analysis. The structural system is proved to be safe and reliable by the analysis results. The construction method of cambering and sliding synced unloading is applied for the purpose of reducing space of the structure, by which the best architectural and economic targets can be reached.
Keywords:steel structure; exhibition center; large-span structure; sync-unloading; sync-sliding; cable-suspended dome
作者簡介：胡正平，博士，工程師，Email:microitman@163.com。
參考文獻
［1］PACKER J A，HENDERSON J E, CAO J J, 等. 空心管結構連接設計指南［M］. 北京：科學出版社, 1997.
