| 预应力法安装大跨度双层网壳结构 |
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| 引用本文： | 郁向盛.预应力法安装大跨度双层网壳结构[J].钢结构,2011,26(3):59-61. |
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| 作者姓名： | 郁向盛 |
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| 作者单位： | 宝钢工程建设有限公司; |
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| 摘 要： | 介绍了一种安装大跨度网壳结构的新思路和新方法,即通过在网壳底部附加预应力索,使原来需要支座来平衡的水平推力转化为预应力索的内力,从而实现网壳结构在地面上的拼装和延伸,直至最终完成整跨网壳的安装工作.安装过程省去了搭设满堂脚手架的工作,从而缩短了工期和节约了造价.由于荷载及结构本身在各个施工阶段处于变化之中,为确保结构的...
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| 关 键 词： | 网壳 安装 预应力 钢索 |
PRESTRESSING METHOD FOR THE INSTALLATION OF LONG SPAN DOUBLE-LAYER LATTICED SHELL STRUCTURE |
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| Yu Xiangsheng.PRESTRESSING METHOD FOR THE INSTALLATION OF LONG SPAN DOUBLE-LAYER LATTICED SHELL STRUCTURE[J].Steel Construction,2011,26(3):59-61. |
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| Authors: | Yu Xiangsheng |
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| Affiliation: | Yu Xiangsheng(Baosteel Engineering & Construction Co. Ltd,Shanghai 201900,China) |
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| Abstract: | It introduces a new idea and method to install long span latticed shell structure.Prestressing cables shall be applied at the two bottom ends of the latticed shell to balance the horizontal force which is originally taken on by the supporting base and transferred to the internal force of the cables.Consequently,all the elements will be installed and extended one by one at the ground level.The method saves the time and cost because it is unnecessary to install the ancillary scaffolds.In the process of erecti... |
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| Keywords: | latticed shell erection prestress steel cable |
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