In this paper, the factors to influence the vertical resonance of a simply supported girder Bridges are investigated systematically.
采用车-桥系统模型，对影响铁路简支梁桥竖向共振的各种因素进行了分析。
This paper analyses the influence of vertical resonance on horizontal dynamic stability of structure. It derives related calculating formulas and gives some rationing results from practical examples.
研究纵向共振时结构横向动力失稳问题，推导出有关的计算公式，并由例题计算给出一些定量结果，证明在动力稳定分析中必须考虑纵向共振的影响。
To avoid the most dangerous resonance, the first vertical frequency of the bridge should be greater than the ratio of the maximum vehicle speed to the vehicle length in design.
为避免桥梁共振，设计时应满足第一阶竖向自振频率大于车辆最大速度与车辆长度的比值。
Swing should depend on wave. Avoid resonance arising from the cycle of vertical shake being near the cycle of wave because of adjusting speed.
因此改变航速应视波浪情况，力求避免调整航速而带来纵摇周期与波浪周期接近出现的“共振”现象。
Swing should depend on wave. Avoid resonance arising from the cycle of vertical shake being near the cycle of wave because of adjusting speed.
因此改变航速应视波浪情况，力求避免调整航速而带来纵摇周期与波浪周期接近出现的“共振”现象。
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