| 大跨径拱桥缆索吊装主缆垂度计算 |
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| 引用本文： | 吕红平,张江涛,吴海军.大跨径拱桥缆索吊装主缆垂度计算[J].工程力学,2007,24(8):133-136,92. |
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| 作者姓名： | 吕红平 张江涛 吴海军 |
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| 作者单位： | 重庆交通大学土木建筑学院,重庆,400074 |
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| 摘 要： | 基于三跨计算模型,考虑主塔塔顶偏位的影响,利用力学关系和几何关系得到了新的主缆垂度计算公式。针对不同的情况,提出了各自简化公式,并探讨了塔顶偏位对主索垂度影响的规律。工程应用表明,该公式具有相当的精度,可为以后缆索吊装施工提供参考。
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| 关 键 词： | 大跨径拱桥 三跨计算模型 主缆 垂度 吊装 |
| 文章编号： | 1000-4750（2007）08-0133-04 |
| 修稿时间： | 2005-12-052007-03-25 |
CALCULATION OF CABLE BENT FOR LARGE-SPAN ARCH BRIDGES |
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| LU Hong-ping,ZHANG Jiang-tao,WU Hai-jun.CALCULATION OF CABLE BENT FOR LARGE-SPAN ARCH BRIDGES[J].Engineering Mechanics,2007,24(8):133-136,92. |
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| Authors: | LU Hong-ping ZHANG Jiang-tao WU Hai-jun |
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| Affiliation: | School of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing 400074, China |
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| Abstract: | Based on the three-span calculation model and considering the influence of top tower deviation, the new calculation formulas for cable bent are suggested by making use of mechanical and geometrical relationships. Aiming at various applications, corresponding simplified formulas are also proposed. Besides, the regularity of the influence on the cable bent caused by top tower deviation is discussed. The accuracy of the formula has been proved by the engineering application, which can provide a reference for the construction of cable lifting. |
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| Keywords: | large-span arch bridge three span calculation model cable bent cable lifting |
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