| 空心板桥体外预应力加固有限元数值分析 |
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| 引用本文： | 杜光.空心板桥体外预应力加固有限元数值分析[J].山西交通科技,2013(2):51-53. |
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| 作者姓名： | 杜光 |
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| 作者单位： | 山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室,山西太原030006 |
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| 摘 要： | 目前在中小跨径空心板桥中普遍出现了"单板受力"问题",单板受力"状态对桥梁危害性特别大,除引起空心板自身破坏外,还可引起桥面铺装、桥面伸缩装置、桥梁支座等的破坏,给行车安全带来了隐患。针对空心板桥的这一病害形式,借助有限元软件ANSYS对体外横向预应力筋加固前、后的空心板桥建立了有限元模型。分析了其荷载横向分布规律及预应力作用的加固效果。
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| 关 键 词： | 空心板桥 横向预应力筋 加固 有限元 |
The Finite Element Numerical Reinforcement for Analysis of External Prestressed Hollow Slab Bridge |
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| DU Guang.The Finite Element Numerical Reinforcement for Analysis of External Prestressed Hollow Slab Bridge[J].Shanxi Science & Technology of Communications,2013(2):51-53. |
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| Authors: | DU Guang |
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| Institution: | DU Guang (Key Laboratory of Highway Construction and Maintenance Technique in Loess Area, Shanxi Transportation Research Institute, Taiyuan, Shanxi 030006, China) |
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| Abstract: | In this paper, a finite element model was established for the hollow external transverse prestressed tendon reinforcement of bridge by finite element software ANSYS. The paper also analyzed the transverse distribution law of loads and reinforcement effect of prestress action. |
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| Keywords: | hollow slab bridge transverse prestressed tendon reinforcement finite element |
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