文档介绍：1 空间大跨度索托结构钢结构体育馆的结构体系与施工技术[摘要]:通过北京芦城体校曲棍球训练馆钢结构工程的实践,介绍了其建筑形式, 结构设计体系和主要的节点形式。同时研究了该工程钢结构的安装方案及预应力张拉方案,包括安装胎架的设置、张拉控制原则和分级张拉过程有限元仿真分析。[关键词]:索托结构钢结构设计安装预应力张拉 Large-span Cable-supported Structure Applied in Stadium Structural System and Its Construction Method [Abstract] Through the Beijing LuCheng Physical Education School Hockey Training Building, the essay introduces the building type, structural system and main connection types. In meantime, the installation method and pre-stress stretching plan are also discussed including the installation template platform, stretching principle and finite imitating analysis of the stretching procedure in steps. [Keywords] Cable-supported Structure; Structural Design; Installation; Pre-stress Stretching 目前国内外超大跨度结构仅有斜拉和悬索结构两种,且都存在若干缺点。而索托结构因其斜索效率大大改善,受力合理,较斜拉结构节省了 50% 以上的索锚头,提高了索的可靠性,索对结构梁的支承不是采用“拉”、“吊”的连接方式, 而是采用“托”的方法,使连接的可靠性大大增加。索托结构中的塔高较斜拉结构要低得多,索托结构的塔高仅为跨长的 1/8 ~1/12 ,降低塔高近 3倍。增加结构侧向刚度近 27 倍。索托结构是采用多根托索,超