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(清華大學建筑設計研究院有限公司, 北京 100084)
[摘要]石家莊國際展覽中心采用了大跨度雙向懸索結構,這在國內尚屬首次。對于這種新型結構形式,結構分析面臨眾多難點和不確定性。從結構體系分析入手介紹了該結構的主要分析過程,重點對施工張拉、關鍵構件角色設定以及構件間的相互關系進行了探討,對影響分析效率及準確性的一些技術問題一并進行了論述。在此基礎上對結構體系、找形、剛度分配、張拉方案、穩(wěn)定性、施工過程、計算方法、節(jié)點設計等多個技術層面提出了一整套行之有效的解決方案或應對措施。項目實踐結果證明了這些技術路線的實用性和高效性。
[關鍵詞]石家莊國際展覽中心; 雙向懸索; 結構體系; 張拉; 穩(wěn)定; 施工過程; 計算方法; 參數(shù)化
中圖分類號:TU393-3文獻標識碼:A文章編號:1002848X(2020)12-0009-08
Structural design analysis of Shijiazhuang International Exhibition Center
CHEN Yujun, LIU Yansheng, LI Qingxiang, LIU Peixiang
(Architectural Design & Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China)
Abstract:Shijiazhuang International Exhibition Center adopts bidirectional large-span cable structure, which is the first time in China. For this new structural form, there were many difficulties and uncertainties structural analysis. The main analysis process of the structure by studying the structural system was introduced. It focused on the discussion of construction and tensioning of the structure, role setting of key members and the relationship among them. Some technical issues that affect the efficiency and accuracy of the analysis are also discussed. On this basis, a set of effective solutions or countermeasures were proposed for structural system, shape finding, stiffness distribution, tension scheme, stability, construction process, calculation method, joint design and other technical aspects. The practical results of the project proved the practicability and efficiency of these technical routes.
Keywords:Shijiazhuang International Exhibition Center; bidirectional cable; structural system; tensioning; stability; construction process; analysis method; parameterization
作者簡介:陳宇軍,碩士,一級注冊結構工程師,Email:chen-yj@tsinghua.edu.cn。