动力特性测试结果表明：随着节点转动刚度的减小，框架自振周期延长。
Dynamic characteristics tests show that the natural vibration period of steel frame can be prolonged with the reducing of connection rotation stiffness.
动载试验中，测试了该桥的自振特性，并进行行车激振试验，分析桥跨结构在行车时的冲击作用。
The natural vibration of the structure is tested, and the impact of the passing vehicles is analyzed under dynamical loads.
在动载试验中，测试桥跨结构的自振特性，并进行了行车激振试验，分析桥跨结构在行车下的冲击作用。
The natural vibration of the structure is tested, and the impact of the passing vehicles is analyzed.
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