A SIMULATION METHOD OF EARTHQUAKE GROUND MOTIONS ON ENGINEERING BEDROCK BASED ON ATTENUATION OF PEAK VALUES

Abstract

A simulation method of earthquake ground motions on engineering bedrock is proposed. The essence of the method is identification of parameters prescribing Fourier spectrum, so that the peak values of the motions generated by proposed models of Fourier amplitude spectrum and envelope function, fit the peak acceleration, velocity and displacement obtained from attenuation equations. The method can be used to generate acceleration time series on engineering bedrock for various magnitudes of earthquakes, distances and focal depths.