Reduced dimensionality representation of strong ground motion records as a superposition of a relatively small number of pulses is studied. Such representation is obtained by the expansion of velocity in orthogonal wavelet series using the Fast Wavelet Transform, and approximation by only the largest energy terms in the series. The Coiflet 5 wavelet family is used, which is orthogonal, smooth a...

Abstract This work presents an up-to-date model for the simulation of non-stationary ground motions, including several novelties compared to original study Sabetta and Pugliese (Bull Seism Soc Am 86:337–352, 1996). The selection input motion in framework earthquake engineering has become progressively more important with growing use nonlinear dynamic analyses. Regardless increasing availability...