| 冲刷条件下桥梁结构动力性能仿真分析 |
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| 引用本文： | 李一博,彭 斌,顾蓉柳,郑 伟,王 超.冲刷条件下桥梁结构动力性能仿真分析[J].水资源与水工程学报,2013,24(1):84-88. |
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| 作者姓名： | 李一博 彭 斌 顾蓉柳 郑 伟 王 超 |
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| 作者单位： | 1. 上海理工大学 环境与建筑学院,上海,200093
2. Jackson State University,Department of Civil and Environment Engineering,Jackson,MS 3927-0168,USA |
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| 基金项目： | 上海理工大学创新基金支持项目(JWCXSL1102);上海理工大学国家级项目培育计划项目(12XGQ06);美国交通研究委员会(Transportation Research Board,TRB)资助项目(DTRT06-G-0049) |
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| 摘 要： | 水流冲刷造成的桥梁损毁会给人类带来重大的经济损失和人员伤亡。冲刷对桥梁安全性的影响,可以通过分析冲刷条件下桥梁动力性能的变化来进行评价。本文将从冲刷深度和冲刷所造成的桥梁基础截面损失两个方面,分析水流冲刷对桥梁动力性能的影响。在总结已有的模型分析方法的基础之上,提出本文的有限元建模思路。并以密西西比河上被冲毁的33号公路桥为例,通过SAP2000软件建立有限元模型并进行模态分析,得到冲刷条件与桥梁动力性能之间的关系。
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| 关 键 词： | 冲刷 结构动力性能 仿真 桥梁 |
| 收稿时间： | 9/3/2012 12:00:00 AM |
| 修稿时间： | 2012/10/8 0:00:00 |
Simulation analysis of dynamic properties of bridge structure in the condition of scour |
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| LI Yibo,PENG Bin,GU Rongliu,ZHENG Wei and WANG Chao.Simulation analysis of dynamic properties of bridge structure in the condition of scour[J].Journal of water resources and water engineering,2013,24(1):84-88. |
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| Authors: | LI Yibo PENG Bin GU Rongliu ZHENG Wei and WANG Chao |
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| Affiliation: | 1(1.School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China; 2.Department of Civil and Environmental Engineering,Jackson State University,Jackson,MS 39217-0168,USA) |
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| Abstract: | Scour has caused huge economic loss and casualties in human history by making bridges failed. The influence of scour on security of bridges may be assessed by analysing the variance of dynamic properties of bridges. This article analyzes the influence of scour on dynamic properties of bridges from two aspects of scour depth and area loss. Based on reviewing existing analytical methods of model, a finite element model is used to analyze the relationship between scour and dynamic properties of an existing failed bridge called MS HWY 33bridge. |
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| Keywords: | scour dynamic properties of bridge structure simulation bridge |
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