| 三塔斜拉桥不同位置设置A形索塔的刚度分析 |
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| 引用本文： | 刘健.三塔斜拉桥不同位置设置A形索塔的刚度分析[J].山西建筑,2012,38(9):182-183. |
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| 作者姓名： | 刘健 |
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| 作者单位： | 同济大学桥梁与隧道工程系,上海,200092 |
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| 摘 要： | 简述了三塔斜拉桥提高刚度的方法,提出A形索塔对提高三塔斜拉桥刚度的重要作用,用midas civil建立主跨为360 m的三塔斜拉桥模型,对索塔采用普通索塔、中塔A形索塔、边塔A形索塔和全部采用A形索塔的活载竖向挠度进行对比分析,得出A形索塔设置在三塔斜拉桥的不同位置对提高结构刚度的影响。
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| 关 键 词： | 三塔斜拉桥 竖向刚度 中塔 边塔 A形索塔 |
Stiffness analysis of A-shaped cable support tower set at different positions of three-tower cable-stayed bridge |
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| LIU Jian.Stiffness analysis of A-shaped cable support tower set at different positions of three-tower cable-stayed bridge[J].Shanxi Architecture,2012,38(9):182-183. |
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| Authors: | LIU Jian |
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| Abstract: | This paper proposes stiffness improving method of three-tower cable-stayed bridge,points out the significant role of A-shaped cable support tower in improving the stiffness of three-tower cable-stayed bridge,establishes three-tCower cable-stayed bridge with 360 m major span by using midas civil,compares and analyzes the flexible-load vertical deflection of cable support tower including common cable support tower,medium tower with A-shaped tower,lateral tower with A-shaped tower and the cable support tower just including A-shaped tower,and finally obtains the impacts of A-shaped cable support tower at different positions upon improving structural stiffness. |
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| Keywords: | three-tower cable-stayed bridge vertical stiffness medium tower lateral tower A-shaped cable |
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