A Multi-Peak Evolutionary Model for Stochastic Simulation of Ground Motions Based on Time-Domain Features

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 NGA-West2 ground motion prediction equations.

KEYWORDS:

• Near-Field Earthquakes
• Nonstationary Records
• Ground Motion Simulation
• Linear Time Variant
• Evolutionary Spectrum
• Scenario-Based Simulation

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.