A new method which improves the fitting accuracy of artificial time history of ground motion to the target responsespectrum by superimposing narrowband time histories in the time domain is proposed.
提出了一种在时域内叠加窄带时程的方法以提高人造地震动时程对目标反应谱的拟合精度。
2
The ground surface responsespectrum of acceleration, velocity and displacement were calculated using NDFEPS-2D.
运用NDFEPS - 2d计算了若干场地模型的地面加速度反应谱、速度反应谱、位移反应谱。
3
The characteristics of frequency-spectrum structure and response of ground soils, including soft soils and the frequency of ground micro-tremor, were investigated.