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对比研究不同的人工地震加速度时程的计算方法,发现不同方法之间的主要差异在于初始时程的获得方式,包括采用与设计响应谱相近的真实地震过程和基于通过响应谱与功率谱密度间近似关系的方法。基于后一种方法,开发人工地震加速度时程计算程序。采用计算实例进行人工加速度时程计算,得到的人工时程具有良好的形态和统计特征参数;人工时程响应谱与设计谱具有良好的相容性。
Comparing different methods for calculating the time series of artificial seismic accelerations, we find that the main difference between the different methods lies in the way of obtaining the initial time series, including the use of a real seismic process similar to the design response spectrum and the comparison between the pass-through response spectrum and the power spectral density Approximate relationship between the methods. Based on the latter method, artificial earthquake acceleration time history calculation program is developed. The calculation example of artificial acceleration time history calculation, the artificial time history obtained with good morphological and statistical characteristics of parameters; artificial time response spectrum and design spectrum has good compatibility.