车辆参数对铁路连续钢桁梁桥竖向有载自振频率的影响  

The Influence of the Vehicle Parameters on Vertical Loaded Free Frequency of Railway Continuous Steel Truss Bridge

作　　者：任剑莹[1] 李华[2] 苏木标[2] 

机构地区：[1]石家庄铁道学院工程力学系,石家庄050043 [2]石家庄铁道学院大型结构健康诊断与控制研究所,石家庄050043

出　　处：《铁道标准设计》2005年第3期59-61,共3页Railway Standard Design

摘　　要：车辆轮对簧下质量、车辆轮对悬挂弹簧刚度、车辆长 度、车体质量等对3×64m铁路连续钢桁梁桥竖向有载自振频 率都有影响,而列车的行车速度对桥梁竖向有载自振频率没有 影响。所得结论与简支梁桥一致。The vertical loaded free frequency of 3×64m continuous steel truss bridge is influenced by the under-spring mass and the stiffness of the spring for each wheel-set of the vehicle, the vehicle’s length and the mass of the vehicle. But it is independent of the velocity of the train. The conclusion accords with the simply supported bridge.

关 键 词：车辆参数 连续钢桁梁桥 竖向振动 有栽自振频率 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]