基于车桥耦合振动的跨座式轨道梁铺装面层影响分析  

Response analysis of straddle-type track beam pavement to vehicle-bridge coupling vibration based on multi-body dynamics

作　　者：申彦利[1,2,3] 韩建棒 刘焕举 SHEN Yanli;HAN Jianbang;LIU Huanju(College of Civil Engineering,Hebei University of Engineering,Handan 056038,China;Hebei Provincial Research Center of Assembly Structural Engineering Technology,Handan 056038,China;Engineering Research Center of New Monorail System,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]河北省装配式结构技术创新中心,河北邯郸056038 [3]河北工程大学新型单轨交通体系工程研究中心,河北邯郸056038

出　　处：《广西大学学报（自然科学版）》2023年第4期766-774,共9页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金项目(51908178)。

摘　　要：为了考察轨道梁铺装面层对跨座式单轨交通车桥耦合系统振动响应影响,基于多体动力学理论建立了含有路面不平整度模型的跨座式单轨车桥耦合系统数值模型,以探究轨道梁铺装面层的材料、厚度及阻尼比等设计参数对行车舒适度和轨道梁跨中振动加速度最大值的影响。结果表明,行车舒适度和轨道梁跨中振动加速度最大值对铺装面层设计参数的敏感程度不同。采用较高阻尼比的水泥混凝土铺装面层对车桥动力响应有小幅改善;采用沥青混凝土铺装面层时,车体垂向、轨道梁跨中横向振动主要受铺装厚度影响,车体横向、轨道梁跨中垂向振动主要受铺装阻尼比影响。For pavement surface investigation track beam of urban monorail transit vehicle.the system vibration response,based on multi-body dynamics theory contains road roughness model of numerical model of urban monorail vehicle.The system to explore track beam pavement surface concrete material,thickness and damping ratio on the driving comfort and track beam across the influence of the vibration acceleration maximum.The results show that the sensitivity degree of traffic comfort and the maximum vibration acceleration of the rail beam to the pavement surface material stiffness and damping ratio is different.The cement concrete pavement with higher damping ratio can improve the dynamic response of vehicle axle slightly.The asphalt concrete pavement layer can be used to reconcile the driving comfort index and the maximum vibration acceleration of the rail beam mid-span when the vertical and transverse difference is large.

关 键 词：跨座式单轨交通 多体动力学理论 车桥耦合 铺装面层 行车舒适度 

分 类 号：U443.35[建筑科学—桥梁与隧道工程]