The effect of the depth of the soft strata on ground peak acceleration is analyzed, and some conclusions with realistic significance are drawn.
分析研究了不同埋深的软弱夹层对地表加速度峰值的影响，获得了一些有意义的结论。
PGA (peak acceleration) is what is experienced by a particle on the ground.
最大加速度(峰值加速度)是大地上的一颗粒子承受的加速度。
Peak ground acceleration, or shaking, caused by Friday's earthquake was nearly double—at its epicenter—than what the Fukushima Daiichi plant, 110 miles (172 km) away, was built to withstand.
星期五地震震中的峰值地面加速度或者振动接近距离震中110英里（172公里）的福岛第一核电站设计承受能力的2倍。
As the intensity index of ground motion, PGA (peak ground acceleration) is often employed and analyzed.
作为地震动强度指标，峰值加速度一直是研究最多的物理量。
Then some rules are presented: the frequency characteristics, acceleration peak value of the input ground motion have great influence on the seismic response of composite foundation.
结果表明：输入地震动的强度和频谱特性对复合地基地震效应影响较大；
Then, the power spectral density (PSD) of the acceleration at ground level is evaluated by an iterative approach according to the principle of equivalent peak acceleration.
然后，根据加速度峰值等效原则，选代计算得到地面的加速度功率谱密度曲线；
Then, the power spectral density (PSD) of the acceleration at ground level is evaluated by an iterative approach according to the principle of equivalent peak acceleration.
然后，根据加速度峰值等效原则，选代计算得到地面的加速度功率谱密度曲线；
应用推荐