| 城市桥梁被车辆撞击后损伤分析 |
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| 引用本文： | 裴小吟,文传勇,张永水.城市桥梁被车辆撞击后损伤分析[J].重庆交通大学学报(自然科学版),2011,30(1):19-21,106. |
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| 作者姓名： | 裴小吟 文传勇 张永水 |
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| 作者单位： | 1. 重庆交通大学,桥梁与隧道工程系,重庆,400074
2. 重庆万州长江公路大桥管理处,重庆,万州,404020 |
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| 基金项目： | 北京市自然科学基金项目 |
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| 摘 要： | 通过研究城市桥梁中当桥墩在重型车辆撞击下的受力状态及车-桥的碰撞机理,采用有限元软件ABAQUS对3种不同车速车辆垂直撞击桥墩的情况进行了模拟分析。分析表明:桥墩被撞击位置处的应力先随时间的增加而增大,达到最大值时,既又随之减小,符合混凝土的弹塑性破坏;并且车速越大,桥墩局部达到的应力及位移也越大。
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| 关 键 词： | 城市桥梁 碰撞 位移 应力 |
Analysis on Damage of Urban Bridges Caused by Vehicle Collision |
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| PEI Xiao-yin,WEN Chuan-yong,ZHANG Yong-shui.Analysis on Damage of Urban Bridges Caused by Vehicle Collision[J].Journal of Chongqing Jiaotong University,2011,30(1):19-21,106. |
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| Authors: | PEI Xiao-yin WEN Chuan-yong ZHANG Yong-shui |
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| Institution: | PEI Xiao-yin1,WEN Chuan-yong2,ZHANG Yong-shui1(1.Department of Bridge & Tunnel Engineering,Chongqing Jiaotong University,Chongqing 400074,China,2.Highway Management of Yangtze River Bridge,Wanzhou 404020,Chongqing,China) |
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| Abstract: | The stress state of the bridge pier under the collision of heavy vehicles with different speeds,and the collision mechanism of vehicle and bridge are mainly studied.The simulation analysis of piers and vehicles is carried out on the basis of the general finite element program ABAQUS.The plain concrete three-dimensional entity model is used as the pier model.The nonlinearity of concrete material is fully considered and reinforced steel is calculated with the consideration of liner elasticity.Ordinary steel e... |
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| Keywords: | urban bridges collision displacement stress |
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