天津于家堡交通樞紐大跨度單層網(wǎng)殼設計與分析
何偉明1，宋長江2，楊華1，馬瑾2，付寶亮1，高修建2，樊珂1，吳海1，熊朝暉1
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何偉明1，宋長江2，楊華1，馬瑾2，付寶亮1，高修建2，樊珂1，吳海1，熊朝暉1（1 奧雅納工程咨詢(上海)有限公司北京分公司，北京100020；2 鐵道第三勘察設計院集團有限公司，天津300251）[摘要] 天津市于家堡交通樞紐站房屋蓋為大跨、無柱單層網(wǎng)殼鋼結構，外形為由正、反螺旋線編織而成的貝殼形雙曲面，平面尺寸約為143m×81m。網(wǎng)殼網(wǎng)格為不規(guī)則空間四邊形，所有箱形截面桿件均以不同角度交匯于節(jié)點。通過對該穹頂結構在各種作用效應下的強度、變形、整體穩(wěn)定及支座的設計、節(jié)點有限元分析、防倒塌分析，保證了結構的安全。[關鍵詞] 單層網(wǎng)殼；大跨鋼結構；螺旋線；整體穩(wěn)定；幾何及材料非線性；支座；有限元分析中圖分類號：TU337文獻標識碼：A文章編號：1002-848X(2012)10-0013-05Design and analysis of the large span single layer latticed steel roof for Tianjin Yujiapu transport hubGoman Ho1, Song Changjiang2, Yang Hua1, Ma Jin2, Fu Baoliang1,Gao Xiujian2, Fan Ke1, Wu Hai1, Xiong Zhaohui1(1 Arup International Consultants (Shanghai) Co. , Ltd. , Beijing Branch, Beijing 100020, China; 2 The Third Railway Survey and Design Institute Group Corporation, Tianjin 300251, China)Abstract: The single layer lattice steel roof of Tianjin Yujiapu transport hub has plan dimension of 143m×81m. This doubly curved roof consists of a series of space spirals in clockwise and counter clockwise direction. The box section beams follow the spirals and form the large column free space. As the shell is double curved and grids are formed by irregular space quadrilaterals, all the elements meet in different angles. The roof structural system, design standard, loading, dynamic analysis and global stability, progressive collapse design, and connection finite element analysis were presented to guarantee the safety and reliability of the roof.Keywords: single-layer lattice roof; large span steel structure; spiral; global stability; geometric and material nonlinearity; bearing; FEA作者簡介：何偉明，博士，公司董事，一級注冊結構工程師，英國結構工程師學會會員，香港工程師學會會員，注冊專業(yè)工程師。Email:goman.ho@arup.com。參考文獻［1］JGJ 61—2003 網(wǎng)殼結構技術規(guī)程［S］. 北京: 中國建筑工業(yè)出版社，2003.［2］沈祖炎，陳揚驥. 網(wǎng)架與網(wǎng)殼［M］. 上海：同濟大學出版社，1996.［3］沈世釗, 陳昕. 網(wǎng)殼結構穩(wěn)定性［M］. 北京: 科學出版社，1999.［4］ BILOW DAVID N, MAHMOUD KAMARA. U.S. General services administration progressive collapse design guidelines applied to concrete moment-resisting frame buildings［C］//2004 ASCE Structures Congress. Nashville: 2004.［5］JGJ 7—2010空間網(wǎng)格結構技術規(guī)程［S］. 北京: 中國建筑工業(yè)出版社,2010.
