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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2012, Vol. 31 ›› Issue (1): 33-36.DOI: 10.3969/j.issn.1674-0696.2012.01.09

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汽车碰撞桥墩撞击力计算

樊文才1,3, 张南2，王新1,3   

  1. 1.江苏省交通科学研究院，江苏 南京 211112；2.南京工业大学　土木工程学院，江苏 南京 210009；3.长大桥梁健康检测与诊断技术交通行业重点实验室，江苏 南京 211112
  • 收稿日期:2011-06-30 修回日期:2011-07-08 出版日期:2012-02-15 发布日期:2015-04-15
  • 作者简介:樊文才(1985-)，男，山东菏泽人，助理工程师，硕士，主要从事桥梁结构设计和研究工作。E-mail:fanwencai2007@126.com。

Calculation on Collision Force of Vehicle Impacting on Bridge

Fan Wencai1,3, Zhang Nan2, Wang Xin1,3   

  1. 1. Jiangsu Transportation Research Institute, Nanjing 211112, Jiangsu, China;2. College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China;3. Key Laboratory of Large-span Bridge Health Inspection & Diagnosis Technology Ministry of Communications PRC, Nanjing 211112, Jiangsu, China
  • Received:2011-06-30 Revised:2011-07-08 Online:2012-02-15 Published:2015-04-15

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摘要： 针对频发的车桥撞击事故，依据钢筋混凝土圆形桥墩落锤冲击试验装置，建立车桥撞击动力学分析模型；基于达朗贝尔原理建立的车桥一维碰撞的单自由度、双自由度模型求解撞击力；分析结果表明：计算结果与试验值基本吻合，峰值及平均值误差分别为-15.4%和14.5%。为桥梁防撞设计提供参考。

关键词: 车桥碰撞, 钢筋混凝土桥墩, 缓冲器

Abstract: Aiming directly at frequently occurred vehicle and bridge collision, the analysis model of vehicle and bridge impact dynamics was established according to falling-weight impact equipment on the reinforced concrete pier model. Based on the D'Alembert principle, the Single-Degree-of-Freedom and Two-Degree-of-Freedom models were set up for one-dimensional and double-dimensional conditions to calculate impact force. The results show that the errors of peak and average were -15.4% and 14.5% respectively. It can provide the significant reference for anti-crash of bridge.

Key words: vehicle-bridge collision, reinforced concrete pier, buffer

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