摘要
研究车辆参数和列车行车速度对车-桥系统竖向有载自振频率的影响情况。采用车-桥系统相互作用的计算模型,分别改变车辆参数和列车行车速度,计算铁路双线连续钢桁梁桥的竖向有载自振频率的变化情况。结果表明:车辆参数对桥梁竖向有载自振频率有一定影响,而桥梁竖向有载自振频率与行车速度无关。
The article researches into the influences of vehicle parameters and the train speed on the vehicle-bridge system's vertical load-carrying natural frequency.Using the interactional vehicle-bridge system model,when the vehicle parameters and the train speed are respectively changed,the changed value of vertical load-carrying natural frequency in railway double-track continuous steel truss girder bridge is calculated.The results show that the bridge's vertical load-carrying natural frequency is impacted by the vehicle parameters,but it is independent of the train speed.
出处
《铁道标准设计》
北大核心
2012年第8期32-35,共4页
Railway Standard Design
基金
铁道部科技研究开发计划项目(2007G028)
铁道部科技研究开发计划项目(2008G015-A)
河北省自然科学基金项目(E2010001095)
关键词
双线连续钢桁梁桥
车-桥系统
竖向有载自振频率
车辆参数
double-track continuous steel truss girder bridge
vehicle-bridge system
vertical load-carrying natural frequency
vehicle parameters
