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结构的最大反应不仅与地震动加速度的幅值有关,还与地震动的频谱特性有关,在对结构的动力特性还不了解却需要进行拟动力试验时,可以利用频域方法对地震波的选取做出定性的初步判断。
The maximum response of the structure is not only related to the amplitude of the earthquake acceleration but also to the spectral characteristics of the ground motion. When the dynamic characteristics of the structure are not known but the pseudo-dynamic test needs to be performed, the selection of the seismic waves can be done by using the frequency domain method Initial determination of the qualitative.