国家体育馆双向张弦钢屋盖施工技术  

Construction Technology of Two-way Chord-tension Steel Roof in National Stadium

作　　者：杨郡[1] 王甦[2] 成会斌 崔嵬 秦杰5 

机构地区：[1]北京城建集团国家体育馆工程总承包部,北京100101 [2]北京城建集团有限责任公司,北京100101 [3]国奥投资发展有限公司,北京100101 [4]浙江精工钢结构公司,浙江绍兴312030

出　　处：《施工技术》2006年第12期20-22,共3页Construction Technology

摘　　要：国家体育馆钢屋盖为双向张弦桁架结构,桁架跨度114m×144.5m。经过1∶10模型试验及大量的仿真分析和方案论证,施工中采用了地面分段组装,高空整榀拼装,纵向桁架横向带索累积滑移,滑移到位后进行双向预应力索分级对称张拉的施工工艺。The National Stadium roof is a two-way chord-tension truss structure, which＇ s span is 114 meters × 144.5 meters. By the 1 ： 10 model test and a lot of emulation analyses and plan demonstration, engineers adopt some construction methods those are segment assembly on the floor, overhead spliced truss, longitudinal truss with cable lateral sliding, and two-way prestressed cable tensioned gradely and symmetrically after the truss is on-site during the construction, of the National Stadium.

关 键 词：国家体育馆 双向张弦桁架 滑移 预应力 张拉 

分 类 号：TU758.11[建筑科学—建筑技术科学]