In this paper, based on the records from 18 earthquakes, the characteristics of vertical ground motions and vertical response spectra are analyzed. The studies of this paper are as following.
本文以国内外18次地震的强震动记录为数据基础，对竖向地震动特征及竖向设计反应谱进行了统计分析。
At ground level, such vibrations-akin to low-frequency sound waves-are very small, only about the size of the vertical motions that produce them.
在地表，这种类似于低频声波的振动非常小，只相当于造成它们的垂直振动的幅度。
For vertical strike-slip faults, the rupture directivity effect causes as strong spatial variation in ground motions for a given closest distance to the fault.
对于垂直走滑断层，在给定的距断层最近的范围内，破裂方向效应使地震动产生强烈的空间变化。
For vertical strike-slip faults, the rupture directivity effect causes as strong spatial variation in ground motions for a given closest distance to the fault.
对于垂直走滑断层，在给定的距断层最近的范围内，破裂方向效应使地震动产生强烈的空间变化。
应用推荐