【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。更多还原

【Abstract】 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.更多还原