| 用LS-DYNA仿真车-桥墩碰撞时角度对桥梁的影响 |
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| 引用本文： | 程海根,邹江娜.用LS-DYNA仿真车-桥墩碰撞时角度对桥梁的影响[J].华东交通大学学报,2013(6):19-24. |
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| 作者姓名： | 程海根 邹江娜 |
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| 作者单位： | 华东交通大学土木建筑学院,江西南昌330013 |
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| 基金项目： | 国家自然科学基金项目（51068005） |
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| 摘 要： | 车撞护栏规范公式表明碰撞角度与撞击力成二次函数关系，运用LS-DYNA对车-桥墩碰撞进行仿真模拟，探讨该规范公式用于车-桥墩碰撞的可行性。结果表明碰撞角度与撞击力成三次函数关系，同时也证实角度与桥梁的位移成一次线性关系，角度越大，横向位移越小，纵向位移越大。
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| 关 键 词： | 车-桥墩碰撞 规范公式 碰撞角度 最大撞击力 位移 |
Influence of Angle on Bridge in Vehicle-Pier Collision Based on LS-DYNA Simulation |
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| Cheng Haigen,Zou Jiangna.Influence of Angle on Bridge in Vehicle-Pier Collision Based on LS-DYNA Simulation[J].Journal of East China Jiaotong University,2013(6):19-24. |
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| Authors: | Cheng Haigen Zou Jiangna |
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| Institution: | (School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China) |
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| Abstract: | The standard formula in crash barrier shows that collision angle and impact force are in a quadratic function relation. This paper discusses the feasibility of the standard formula in the vehicle-pier collision based on LS-DYNA vehicle-pier collision simulation. The results indicate that impact force has cubic function rela-tionship with the collision angle and the displacement of the bridge has primary linear relationship with the colli-sion angle：the greater the angle is,the smaller the horizontal displacement is,and the bigger the longitudinal displacement is. |
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| Keywords: | vehicle-pier collision standard formula collision angle impact force displacement |
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