(中铁建设集团有限公司，北京100040)

［摘要］介绍了大跨度钢桁架结构的施工技术，重点探讨了异型立体桁架安装、斜拉索安装张拉施工、国产厚钢板负温环境焊接施工技术等。
［关键词］体育馆；空间结构；立体桁架；斜拉索；焊接；监测

In this article, the author introduces the construction technology of large span steel truss structure. Some aspects of the construction are emphasized, such as the installation of specialshaped spatial truss, the installation and stretching of stay cable, the welding technology of homemade thick steel plate at negative temperature.