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A multi-peak evolutionary model for stochastic simulation of ground motions based on time-domain features
, Article Journal of Earthquake Engineering ; 2018 ; 13632469 (ISSN) ; Rofooei, F. R ; Hashemi, M. J ; Sharif University of Technology
Taylor and Francis Ltd
2018
Abstract
This paper introduces an efficient stochastic method to produce fully nonstationary records having multiple peaks in power spectrum. The zero-crossing characteristics of the acceleration, velocity, and displacement time histories of the output signal are used to estimate the model parameters. This procedure is utilized to resimulate 252 non-pulse-like, horizontal near-field records with rupture distance of less than 10 km and strike–slip mechanism. The model parameters are regressed against moment magnitude, rupture distance, hypo-central depth, and shear wave velocity, enabling the scenario-based simulation of the records. The response spectra of the simulated records are compared with...