超高车辆撞击钢桥上部结构模型试验研究

PDF(2400 KB)

振动与冲击 ›› 2012, Vol. 31 ›› Issue (5) : 31-35.

论文

超高车辆撞击钢桥上部结构模型试验研究

何水涛，陆新征，卢啸，曹海韵

作者信息 +

Experimental study on the collision between over-height truck and steel bridge superstructures

He Shui-tao, Lu Xin-zheng, Lu Xiao, Cao Hai-yun

Author information +

文章历史 +

摘要

针对当前城市交通中凸显的车桥碰撞问题，设计了超高罐车撞击钢箱梁桥和钢板梁桥的缩尺模型试验，并采用动力非线性有限元对撞击试验进行了数值模拟。试验结果表明不同桥型在超高车辆的撞击下，其破坏模式有着明显的差别，钢箱梁桥以整体变形为主，钢板梁桥以局部冲切变形为主。文中建立的有限元模型和试验结果吻合良好

Abstract

Due to the frequently happened collisions between over-high trucks and bridge superstructures in urban transport system in last decades, scaled model experiments on the collision between over-high trucks and steel box-section and -section bridges are designed and tested in this work. Corresponding nonlinear dynamic finite element analysis is implemented to simulate the collision experiments. The experiments indicate that even subjected to the same collision load, different bridges have different failure modes obviously. The failure mode of steel box-section bridge is dominated by global deformation, while the failure mode of the steel -section bridge is dominated by the local punching deformation. The simulated results with proposed finite element model agree well with the test results.

导出引用

何水涛;陆新征;卢啸;曹海韵. 超高车辆撞击钢桥上部结构模型试验研究[J]. 振动与冲击, 2012, 31(5): 31-35

He Shui-tao;Lu Xin-zheng;Lu Xiao;Cao Hai-yun. Experimental study on the collision between over-height truck and steel bridge superstructures[J]. Journal of Vibration and Shock, 2012, 31(5): 31-35