重庆鹅公岩轨道专用悬索桥船撞作用下行车安全性与舒适性研究

摘要

为研究重庆鹅公岩轨道专用悬索桥在遭受船舶撞击作用下,轨道车辆行车安全性与舒适性,采用桥梁结构分析软件BANSYS建立有限元模型,对桥梁在船撞力作用下的动力特性及车-桥耦合振动进行分析计算,并根据分析结果对行车安全性和舒适性作出评价.结果表明:船撞力的作用大幅增加了桥梁在横向的振动响应,并一定程度地增大了车辆的响应;但船撞力对车辆响应的影响远小于其对桥梁响应的影响,且列车的行车安全性和舒适性指标均满足要求.%In order to study the driving safety and comfort of monorail trains on Chongqing Egongyan Monorail Suspension Bridge with the effect of vessel collision, the bridge structure analysis software BANSYS is used to set up a finite element model to analyze and calculate vehicle-bridge coupled vibration and the dynamic characteristics of bridge with the effect of vessel collision, and evaluate safety and comfort according to the results of analysis. The results indicates that the impact of vessel collision greatly increases the lateral vibration response of the bridge and increases the response of the train to a certain extent;However, the impact of vessel collision on vehicles response is far less than that on the bridge response, and the traffic safety and comfort indicators of the train meet the requirements.