王中伟     （立众精密结构（上海）有限公司  200021）

   陈务军    （上海交通大学空间结构研究中心  200030）

[提要]  台湾花莲田径场看台罩棚是由跨度155m的大型桁架拱、29.7m×93.12m双曲四角锥网壳、下部钢结构以及覆盖膜组成的复杂空间结构体系，结构形式新颖，设计分析比较复杂。详细介绍了膜的找形、荷载、空间网壳与桁架拱分析的模型、方法与结果，以及主要节点的设计构造、膜制作工艺与安装方法、空间桁架的制作与安装。
[关键词]  空间结构  覆盖膜  结构分析  施工方法

Hualian Ground Track Field Stand consists of an arch-truss of 155m span, 29. 7m×93. 12m reticulated shell, and support space frames and cover membrane. The structural form is fairly novel,but structural analysis and design are rather complicated.The structural analyses includes the form-finding analysis,loading analysis and cutting and patterning of cover membrane, reticulated shell and arched truss analysis. This paper presents the analytical models, numerical procedures and results in detail. Meantime,the key joints,membrane manufacture and setting-up procedure, also the manu-facturing and erecting of the space trusses are presented concisely.
Keywords:  space structure; cover membrane; structural analysis: construction procedure