本文根据原型振动实测的位移记录，应用时间域识别法，求得了结构的前几阶模态的固有频率和阻尼比。
Some modal natural frequencies and damping coefficients of a structure are derived by means of in-sita testing displacement records and the time domain identification technique.
我选择的ach法，一切都进入了创记录的时间和接受。
I choose ACH method and everything is entered and accepted in record time.
为了消除合成地震记录的时深关系影响，建议采用时间扫描法代替手工移动法。
In order to eliminate the influence of time-distance relationship on seismic synthetic records, we suggest using time-scanning method to replace manual-shifting method.
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