（1 河海大学水利水电学院，南京 210098； 2 东南大学土木工程学院，南京 210096；3 上海勘测设计研究院，上海 200434）

［摘要］为准确把握多种施工因素对大跨度弦支穹顶结构静力性能的影响，以济南奥体中心体育馆为例，基于有限元数值分析方法，建立了122m的大跨度弦支穹顶结构模型，计算分析了预应力拉索施工阶段支座的约束状态和预应力拉索施工全过程对大跨度弦支穹顶静力性能的影响以及上层网壳施工安装偏差和施工环境温度对其稳定性能的影响。分析结果表明，上述四类施工因素对该大跨度弦支穹顶结构的静力性能有不同程度的影响，因此，在大跨度弦支穹顶的结构设计与施工过程中，应综合考虑各类施工因素的影响以确保结构在各阶段的可靠度。

［关键词］弦支穹顶；约束状态；施工过程；安装偏差；环境温度

Structural performance analysis of long-span suspen-dome considering construction factors

Wang Yongquan¹， Guo Zhengxing²， Wu Yifeng³， Luo Bin²(1 College of Water Conservancy and Hydropower, Hohai University, Nanjing 210098, China；2 College of Civil Engineering, Southeast University, Nanjing 210096, China；3 Shanghai Investigation, Design & Research Institute, Shanghai 200434, China)

Abstract:In order to accurately grasp the static performances of long-span suspen-dome under various unfavorable construction factors, the steel roof of Jinan Gymnasium was taken as an example. Based on the finite element method, not only the influence of the boundary condition on long-span suspen-dome during the construction process was analyzed, but also the effect of the whole prestressed construction process was studied. In addition, considering the installation deviation of the upper single layer dome and the environmental temperature during the construction process, the stability analysis was performed. The results indicate that the influence of various construction factors on the structural performances is very obvious. Therefore, during the design and construction process of long-span suspen-dome, various construction factors must be comprehensively considered to ensure the reliability of the structure.

Keywords:suspen-dome; restrained condition; construction process; installation deviation; environmental temperature

作者简介：王永泉，博士，一级注册结构工程师，Email: wyq－hhu@hhu.edu.cn。

参考文献

［1］MAMORU KAWAGUCHI, MASARU ABE, IKUO TATEMICHI．Design, tests and realization of “suspen-dome” system［J］．Journal of the IASS, 1999, 40(3): 179-192.

［2］陈志华,冯振昌,秦亚丽,等. 弦支穹顶静力性能的理论分析及实物加载试验［J］. 天津大学学报， 2006,39(8) :944-950.

［3］郭正兴,石开荣,罗斌,等. 武汉体育馆索承网壳钢屋盖顶升安装及预应力拉索施工［J］. 施工技术, 2006, 35(12): 51-53, 58.

［4］葛家琪,张国军,王树. 弦支穹顶预应力施工过程仿真分析［J］. 施工技术,2006 ,35(12) :10-13.

［5］王永泉,郭正兴,罗斌,等. 常州体育馆大跨度椭球形弦支穹顶预应力拉索施工［J］. 施工技术,2008,37(3) :33-36.

［6］郭正兴,王永泉,罗斌,等. 济南奥体中心体育馆大跨度弦支穹顶预应力拉索施工［J］. 施工技术,2008,37(5):133-135.

［7］秦亚丽,陈志华. 弦支穹顶施工方法及施工过程分析［C］//第六届全国现代结构工程学术研讨会论文集,2006.

［8］崔晓强,郭彦林,叶可明. 大跨度钢结构施工过程的结构分析方法研究［J］. 工程力学,2006,23(5):83-88.

［9］张国军,葛家琪,秦杰,等. 2008奥运会羽毛球馆弦支穹顶预应力张拉模拟施工过程分析研究［J］. 建筑结构学报,2007,28(6):31-38.

［10］张爱林,黄冬明,张传成,等. 弦支穹顶施工全过程分析［J］.工业建筑,2007,37(4):56-59.

［11］石开荣. 大跨椭圆形弦支穹顶结构理论分析与施工实践研究［D］.南京:东南大学, 2007.