Velocity response spectra: Estimates of parameters and shapes

Abstract

Based on analysis of the empirical data on velocities of strong ground motions, the average shape of the velocity response spectrum was established for the first time. The basic parameters of the spectrum were studied, such as the logarithmic width and dynamic amplification factor β. As well, the asymmetry of the velocity response spectra and the steepness of their slopes were estimated. The mean values of all these parameters and corresponding standard deviations were determined. The results can be used for seismic treatment assessment.