| 桥塔对多塔悬索桥力学行为的影响 |
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| 引用本文： | 王萍,李斌,许顺国.桥塔对多塔悬索桥力学行为的影响[J].河北工业大学学报,2008,37(2):97-102. |
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| 作者姓名： | 王萍 李斌 许顺国 |
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| 作者单位： | 1. 天津市国腾公路咨询监理有限公司,天津,300211
2. 天津市公路工程设计研究院,天津,300170 |
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| 摘 要： | 多塔悬索桥作为一种新型的桥梁体系,它的很多力学性能还都有待研究.悬索桥体系的刚度满足与否,主要取决于中间塔的刚度.在荷载作用下,多塔悬索桥的中间塔由于没有边锚索固定,中间塔塔顶水平位移加大,导致整个结构变位过大,中间塔的刚性是设计的关键.以一座三塔悬索桥为工程背景,用BNLAS软件建立了三维有限元模型,主要讨论桥塔刚度对多塔悬索桥力学行为的影响.
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| 关 键 词： | 多塔悬索桥 中间塔 刚度 位移 |
| 文章编号： | 1008-2373(2008)02-0097-06 |
| 修稿时间： | 2007年12月14 |
Effect of Pylons on Mechanical Behavior of Multi-span Suspension Bridges |
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| WANG Ping,LI Bin,XU Shun-guo.Effect of Pylons on Mechanical Behavior of Multi-span Suspension Bridges[J].Journal of Hebei University of Technology,2008,37(2):97-102. |
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| Authors: | WANG Ping LI Bin XU Shun-guo |
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| Affiliation: | WANG Ping 1,LI Bin 2,XU Shun-guo 2 ( 1. Tianjin Guoteng Highway Consultation , Project Management C,LTD,Tianjin 300211,China,2. Tianjin Highway Engineering Design , Research Institute,Tianjin 300170,China ) |
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| Abstract: | Because the intermediate pylons of multi-span suspension bridges have no backstays connecting them to the fixed points,under the action of external loads,the tops of the pylons will produce much horizontal displacement, and will result in considerable deformation in the overall structure.Therefore, to obtain the adequate stiffness of the intermediate pylons becomes critical in the design.This paper based upon a three pylons suspension Bridge,establishing a 3-D finite element model with the BNLAS software.In... |
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| Keywords: | multi-span suspension bridges intermediate pylons stiffness displacement |
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