| 索穹顶结构多种预应力张拉施工方法的全过程分析 |
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| 引用本文： | 董石麟,袁行飞,赵宝军,向新岸,郭佳民.索穹顶结构多种预应力张拉施工方法的全过程分析[J].空间结构,2007,13(1):3-14,25. |
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| 作者姓名： | 董石麟 袁行飞 赵宝军 向新岸 郭佳民 |
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| 作者单位： | 浙江大学空间结构研究中心,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金资助项目(50638050) |
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| 摘 要： | 索穹顶结构的预应力张拉施工成形过程分析一直是国内外学者研究的热点和难点.本文结合国外已有工程预应力张拉施工方法和国内相关研究成果介绍,以一跨度为122m的索穹顶结构为例,提出了包括逐圈斜索张拉法、仅外圈斜索张拉法、逐圈竖杆顶压法、仅外圈竖杆顶压法、逐圈环索张拉法、仅外圈环索张拉法、逐圈斜索原长安装法等七种预应力张拉施工方法,并采用动力松弛法对采用各种预应力张拉施工方法进行施工模拟全过程分析,为实际索穹顶结构工程的张拉施工提供理论依据和技术支持.
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| 关 键 词： | 索穹顶 预应力张拉 施工方案 动力松弛法 |
| 文章编号： | 1006-6578（2007）01-0003-12 |
| 修稿时间： | 2006-09-01 |
Constrution analysis of cable-dome structures pretensioned by different schemes |
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| DONG Shi-lin,YUAN Xing-fei,ZHAO Bao-jun,XIANG Xin-an,GUO Jia-min.Constrution analysis of cable-dome structures pretensioned by different schemes[J].Spatial Structures,2007,13(1):3-14,25. |
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| Authors: | DONG Shi-lin YUAN Xing-fei ZHAO Bao-jun XIANG Xin-an GUO Jia-min |
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| Affiliation: | Space Structures Research Center, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Construction analysis of cable-dome structures is the research hotspot and difficulty to scholars.In this paper construction analysis of a cable dome with a diameter of 122m was conducted.Several construction schemes such as pretensioning the diagonal cables from outer to inner,only pretensioning the outer diagonal cable,adjusting the length of struts from outer to inner,only adjusting the length of the outer strut,pretensioning the cable hoops from outer to inner,only pretensioning the outer cable hoop,and installing the diagonal cables with the original length from outer to inner were provided.Construction process was simulated based on the dynamic relaxation method.The results of research indicate that the designed form of the cable dome can be obtained successfully according to the proposed construction schemes. |
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| Keywords: | cable-dome structure pretension construction scheme dynamic relaxation method |
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