The frequency response functions of relative displacement and absolute acceleration are derived under acting of harmonic ground excitation.
推导了地面简谐运动作用下的加速度和位移的频率响应函数。
It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
研究结果表明：在简谐地面加速度作用下，高频地震动也可以引起长周期结构产生很大的位移反应，且最大位移反应出现在结构的瞬态自由振动阶段。
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