In the absence of ground acceleration data, the nature of the input excitation can be inferred only from structural behavior . 在没有地面加速度数据的情况下,只能从结构的性状来推测输入激振的性质。
Even for the most recent destructive earthquakes in the world there has been a lamentable lack of measured ground acceleration data . 即使不久前世界上发生的大地震,也十分遗憾地没有测到地面加速度数据。
The analysis is developed in three aspects ? amplitude , frequency and duration , accordingly , the contents of this paper can be divided into three parts . in the end of each part , a summary is given 以及日本宫城县北部hosokura矿的24个地震动峰值加速度数据,包括192组加速度峰值,其中每组峰值包括两个水平分量和一个竖向分量。