| 斜拉桥索塔锚固区节段模型有限元分析 |
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| 引用本文： | 洪勇,黄舒文,王成明,罗文林.斜拉桥索塔锚固区节段模型有限元分析[J].现代交通技术,2013,10(2):40-44. |
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| 作者姓名： | 洪勇 黄舒文 王成明 罗文林 |
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| 作者单位： | 1. 如皋市交通投资发展有限公司,江苏南通,226500
2. 东南大学交通学院,江苏南京,210096 |
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| 摘 要： | 斜拉桥索塔常采用小半径的U型预应力筋抵抗斜拉索产生的荷载1]。文章建立了索塔锚固区节段的有限元模型,模拟U形预应力筋在结构中的作用。按照设计的各个工况索力进行加载,分析模型在预应力和索力荷载共同作用下的应力分布状态,取得索塔的最不利断面,对结构的安全性有重要的指导作用。
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| 关 键 词： | 斜拉桥 U型预应力筋 有限元分析 索塔 应力分布 |
Finite Element Analysis of Sectional Model of Cable-pylon Anchorage Zone of Cable-stayed Bridge |
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| Hong Yong
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Huang Shuwen
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Wang Chengming
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Luo Wenlin.Finite Element Analysis of Sectional Model of Cable-pylon Anchorage Zone of Cable-stayed Bridge[J].Modern Transportation Technology,2013,10(2):40-44. |
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| Authors: | Hong Yong Huang Shuwen Wang Chengming Luo Wenlin |
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| Institution: | 1. Rugao Traffic Investment ＆ Development Co.,Ltd, Nantong 226500, China; 2. College of Transportation, Southeast University, Nanjing 210096, China) |
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| Abstract: | Cable-stayed bridge usually resists the load of cable by using U-shaped prestressed tendon with minor radius in the pylon. This paper builds a finite model of cable-pylon anchorage zone and simulates the effect of U-shaped prestressed tendon in the structure. The cable force is loaded according to designed data. It analyzes the status of stress distribution both with prestress and cable load in the model and gets the weakest section of pylon. It has important instructive effect for the safety of structures. |
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| Keywords: | cable-stayed bridge U-shaped prestressed tendon FEA cable-pylon stress distribution |
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