EXPERIMENTAL RESEARCH ON PRESTRESSING CONSTRUCTION TECHNOLOGY OF NATIONAL GYMNASIUM
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摘要: 通过模型试验研究了国家体育馆屋盖双向张弦结构的预应力施加方法。从索力大小、钢结构应力和竖向位移及其变化幅度等方面对比分析了两种张拉方法的优缺点。最后得出适合国家体育馆的预应力施工方案,所得结论对双向张弦结构预应力施工方法具有实际借鉴意义。Abstract: It has been studied the prestressing construction technology of bidirectional truss string structure of the National Gymnasium.The two methods of tensioning cables are compared from three aspects: cable forces,axial stress and vertical displacements.From the experimental results it has been decided which method is better to complete prestressing construction.The conclusion can be referenced by other similar projects.
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Key words:
- bidirection string structure /
- cable forces /
- axial stress /
- vertical displacement
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秦杰,沈世钊. 预应力索拱结构施工技术与试验研究[J].工业建筑,2006,(05):91-94. 陈荣毅,董石麟. 大跨度张弦钢桁架的预应力施工[J].空间结构,2003,(02):61-63. 李忠献. 工程结构试验理论与技术[M].天津:天津大学出版社,2004.
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