| 车辆荷载作用下路桥段结构的动态响应分析 |
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| 引用本文： | 陶向华,黄晓明,刘萌成.车辆荷载作用下路桥段结构的动态响应分析[J].公路交通科技,2005,22(9):7-11. |
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| 作者姓名： | 陶向华 黄晓明 刘萌成 |
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| 作者单位： | 东南大学交通学院,江苏,南京,210096 |
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| 基金项目： | 交通西部交通建设科技项目(200231800032) |
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| 摘 要： | 本文首先建立了车辆荷载模型,并通过编制FORTRAN用户子程序实现了车辆荷载的移动和重复作用。采用大型有限元软件ABAQUS对简化的路桥段结构进行了三维有限元分析,计算了路桥段在车辆动荷载作用下的应力应变特性和变形规律,并分析了载重对路桥段结构的影响。结论认为:车辆荷载是导致台背填土以及地基沉降的直接原因之一,因而在路桥段结构设计中应考虑车辆动荷载的作用。
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| 关 键 词： | 车辆荷载 路桥段 有限元分析 动态响应 |
| 文章编号： | 1002-0268（2005）09-0007-05 |
| 收稿时间： | 2005-06-18 |
| 修稿时间： | 2005-06-18 |
Analysis of Road Approach Bridge Section Dynamic Response under Vehicle Load |
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| TAO Xiang-hua,HUANG Xiao-ming,LIU Meng-cheng.Analysis of Road Approach Bridge Section Dynamic Response under Vehicle Load[J].Journal of Highway and Transportation Research and Development,2005,22(9):7-11. |
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| Authors: | TAO Xiang-hua HUANG Xiao-ming LIU Meng-cheng |
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| Institution: | College of Transportation Engineering, Southeast University, Jiangsu Nanjing 210096, China |
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| Abstract: | Firstly, the vehicle load model is established, and the moving vehicle load is added on the slab through the user subroutine program. Secondly, road-approach-bridge transition section 3-D finite-element analysis is carried out by ABAQUS software, and the stress, strain characteristics and displacement of the transition section are calculated, and the effect of load on transition section is discussed. It is concluded that vehicle load is one direct factor causing post-construction and foundation settlement, so the vehicle dynamic load should be considered in designing the road-approach-bridge transition section. |
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| Keywords: | Vehicle load Road-approach-bridge secdon Finite element analysis Dynamic response |
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