几种典型车辆在斜拉桥桥面行使的临界风速研究

PDF(2029 KB)

振动与冲击 ›› 2011, Vol. 30 ›› Issue (10) : 30-34，4.

论文

几种典型车辆在斜拉桥桥面行使的临界风速研究

马麟1; 韩万水2; 刘健新2;李加武2

作者信息 +

The study on critical wind velocity for several kinds of typical vehicles driving on the deck of the cable-stayed bridge

MA Lin1; HAN Wan-shui 2; LIU Jian-Xin2;lI Jia-wu

Author information +

文章历史 +

摘要

研究强侧风作用下三种典型汽车在斜拉桥桥面行驶时的临界风速和车速。分析汽车运动方程的随动坐标特性和桥梁的侧向抖振对汽车相对桥面侧偏的影响，得到侧偏位移及速率的计算式，在以往基础上，研究了考虑车辆侧偏和驾驶员行为的风-车-桥空间耦合振动系统，完善了仿真分析程序的功能。以某斜拉桥为实例，分析三种典型车辆在桥面行使的临界风速。分析结果表明：采用控制重心还是前轮侧滑的驾驶员模型不显著影响桥面汽车临界风速的大小；不同类型汽车的事故原因可能不同，对于箱式货车，侧滑事故起控制作用，对于桑塔纳和一汽佳宝，车速高时，侧倾事故起控制作用，低车速时，侧滑事故起控制作用。

Abstract

The critical wind velocity and driving velocity are studied for three kind of typical vehicles driving on the deck of cable-stayed bridge within strong side wind environment. The effect on vehicles’ side deviation relative to the bridge deck of bridge’s side buffeting and the character of following coordinate for vehicles’ moving equation are analyzed, the calculation formulas of relative side slipping and its velocity are attained. Based on the previous research, the wind-vehicle-bridge coupling vibration system including vehicles’ side moving degrees and pilot’s behavior is studied, and corresponding program code is written and tested. With a cable-stayed bridge engineering background, critical wind velocity are attained of three kind of typical automobiles driving on the bridge deck. Results show that the critical wind velocity will not be significantly influenced by controlling objective of driver behavior. The accident types of the different vehicles are possibly different. For box-type truck, critical wind velocity of side slipping is always lower than that of overturning. But for cars like Santana and Jia-bao, overturning accident will play a controlling role when driving velocity is high, while side slipping accident will do when driving velocity is low.

导出引用

马麟;韩万水;刘健新;李加武. 几种典型车辆在斜拉桥桥面行使的临界风速研究[J]. 振动与冲击, 2011, 30(10): 30-34，4

MA Lin;HAN Wan-shui;LIU Jian-Xin;lI Jia-wu. The study on critical wind velocity for several kinds of typical vehicles driving on the deck of the cable-stayed bridge[J]. Journal of Vibration and Shock, 2011, 30(10): 30-34，4