桥梁结构的自振特性是结构动力分析和抗震分析的重要参数。
The free vibration characteristic of bridge structure is the important parameter for the dynamic and seismic analysis of structure.
固有频率和振型是反映结构动力特性的主要模态参数，是评价桥梁动力性能的重要依据。
The natural frequency and vibration mode are the principal modal parameters representing structure dynamic behavior as well as the important basis for evaluating bridge dynamic performance.
气动导纳函数是桥梁抖振分析中的重要气动参数。
Aerodynamic admittance was an important aerodynamic factor in the analysis of buffeting of Bridges.
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