Failure Mode and Impact Performance of Bridge Piers Subjected to Heavy Vehicle Collision

赵武超; 钱江

doi:10.13409/j.cnki.jdpme.2019.01.010

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Failure Mode and Impact Performance of Bridge Piers Subjected to Heavy Vehicle Collision

更新时间：2025-12-11

- Failure Mode and Impact Performance of Bridge Piers Subjected to Heavy Vehicle Collision
- Vol. 39, Issue 1, Pages: 67-74+88(2019)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2019.01.010
  CLC： 443.22
- Published：2019
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[1]赵武超,钱江.重型车辆撞击桥墩的破坏模式及抗撞性能分析[J].防灾减灾工程学报,2019,39(01):67-74+88.

赵武超, 钱江. Failure Mode and Impact Performance of Bridge Piers Subjected to Heavy Vehicle Collision[J]. 2019, 39(1): 67-74+88.
[1]赵武超,钱江.重型车辆撞击桥墩的破坏模式及抗撞性能分析[J].防灾减灾工程学报,2019,39(01):67-74+88. DOI： 10.13409/j.cnki.jdpme.2019.01.010.

赵武超, 钱江. Failure Mode and Impact Performance of Bridge Piers Subjected to Heavy Vehicle Collision[J]. 2019, 39(1): 67-74+88. DOI： 10.13409/j.cnki.jdpme.2019.01.010.

摘要

基于数值仿真技术建立重型车辆-桥墩碰撞有限元模型

对不同参数下桥墩的瞬态响应和破坏模式进行参数分析

研究参数主要包括桥墩直径、碰撞速度、车辆碰撞偏心距、上部结构的有效参与质量和箍筋间距等;讨论了规范建议的桥墩抗撞能力计算方法

并分析了其实际抗撞能力。研究结果表明

车辆高速撞击下桥墩的破坏形式以剪切破坏为主。由于车辆撞击下桥墩的动力效应十分显著

截面最大动态抗剪强度约是静态抗剪强度设计值的4倍。上部结构的参与质量对桥墩的破坏模式具有一定影响;配箍率的增加对抗撞能力的贡献比较有限;截面尺寸对桥墩抗撞能力的影响最为显著。20ms平均处理时的碰撞力峰值与桥墩截面抗剪需求比较一致。

Abstract

The detailed vehicle and bridge pier finite element models were established wsing the numerical simulation technique.A parametric study was also conducted to analyze the transient response and failure mode of the piers

which included the pier diameter

the impact velocity

the off-center distance

the equivalent participating masses of the superstructure and stirrup spacing.The computational methods of impact capacity of the bridge pier suggested by codes were discussed

and the actual impact capacity of the bridge pier was also analyzed.The results show that the failure mode of the bridge pier under vehicle collision is mainly shear failure.Due to the dynamic effect of the impacted bridge pier is very significant

the dynamic capacity of the bridge pier is about four times the design value of the static shear capacity.The participating masses of the superstructure can influence the failure mode of the bridge pier to some degree.The effect of increasing stirrups ratios on the impact capacity is limited.However

the diameter of the bridge pier plays a dominated role in it’s imapct capacity.The peak imapct force calculated using the 20 ms local average method is consistent with the shear demand of the bridge pier.

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references

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近15年国内桥梁坍塌事故的原因和风险分析 [J]. 易仁彦,周瑞峰,黄茜. 交通科技 . 2015(05)

汽车撞击桥墩瞬态撞击力的等效静力计算 [J]. 崔堃鹏,夏禾,夏超逸,吴萱. 振动与冲击 . 2014(04)

Reduced Models for Simulating Collisions between Trucks and Bridge Piers [J] . Lin Chen,Sherif El-Tawil,Yan Xiao. Journal of Bridge Engineering . 2016

Probabilistic demand model and performance-based fragility estimates for RC column subject to vehicle collision [J] . Hrishikesh Sharma,Paolo Gardoni,Stefan Hurlebaus. Engineering Structures . 2014

Effects of Truck Impacts on Bridge Piers [J] . Sherif El-Tawil,Hong Hao Li. Advanced Materials Research . 2013 (639)

Numerical simulation of axially loaded concrete columns under transverse impact and vulnerability assessment [J] . H.M.I. Thilakarathna,D.P. Thambiratnam,M. Dhanasekar,N. Perera. International Journal of Impact Engineering . 2010 (11)

Vehicle Collision with Bridge Piers [J] . Sherif El-Tawil,Edward Severino,Priscilla Fonseca. Journal of Bridge Engineering . 2005 (3)

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