- 摘 要
-
（上海建筑設計研究院有限公司， 上海 200031）
［摘要］合肥濱湖國際會展中心二期由一個綜合展館和兩個標準展館組成，其中綜合展館為實現(xiàn)展廳區(qū)域的無柱大空間，采用跨度為144m的空間張弦桁架屋蓋，是目前國內(nèi)會展建筑中最大跨度的張弦桁架屋蓋之一。介紹了該屋蓋結構形式、結構布置、支座設計以及構件截面等基本設計信息，對支座形式進行了比選，給出了結構靜力分析結果，同時進行了拉索不松弛驗算，最后闡述了屋蓋的防倒塌驗算方法。結果表明，屋蓋結構選型合理，各項指標均滿足規(guī)范要求。
［關鍵詞］大跨空間結構； 張弦桁架； 預應力； 非線性屈曲； 防倒塌驗算
中圖分類號：TU323.4, TU391文獻標識碼：A文章編號：1002-848X(2020)09-0032-05
.
Design on large-span roof of general exhibition hall of Hefei Binhu International Exhibition Center Phase
LIU Hongxin, LI Yaming
（Shanghai Institute of Architectural Design and Research Co., Ltd., Shanghai 200031, China）
Abstract:Hefei Binhu International Exhibition Center Phase Ⅱ consists of one general exhibition hall and two standard exhibition halls. In order to realize the column-free space in the general exhibition hall, the spatial truss string roof structure of a span of 144m is adopted, which is one of the largest span spatial truss string structures of the current exhibition buildings in China. The basic design information of the roof was introduced, including structural form and arrangement, support design and member section. The support forms were compared and selected, and the structural static analysis results were provided. At the same time, the checking calculation of the cable was carried out, and finally the method for anti-collapse checking calculation of the roof was described. The results show that the roof structural system selection is reasonable, and all indexes meet the requirements of the specification.
Keywords:large-span spatial structure; truss string structure; prestress; non-linear buckling; anti-collapse checking calculation
*上海華建集團課題《大跨度弦支鋼-鋁組合桁架應用技術研究》（18-1類-0066-結）。
作者簡介：劉宏欣，博士，高級工程師，Email:liuhx@isaarchitecture.com。
