[提要]  国家大剧院巨型钢壳体安装过程中使用螺栓球网架结构代替普通脚手架作为其临时施工支撑体系，充分发挥了网架结构的空间受力性能，而且装卸方便，可以重复利用。由于该工程体量高大，支撑条件复杂，针对工程需要，进行了支撑体系的合理选型和结构设计研究。
[关键词]  支撑体系  结构选型  螺栓球网架  稳定性

Bolted-spherical-jointed space truss structure is applied in erection engineering of the National Grand Theatre Dome Shell as temporary construction support system instead of currently construction false-work. The space truss structure can be erected and disassembled conveniently and the structure materials can be reused. Based on the engineering load and support conditions, this paper researches the rational types choice and structure design.
Keywords: construction support system; bolted-spherical-jointed space truss; stability