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A multi-peak evolutionary model for stochastic simulation of ground motions based on time-domain features
Waezi, Z ; Sharif University of Technology | 2018
591
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- Type of Document: Article
- DOI: 10.1080/13632469.2018.1518279
- Publisher: 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 NGA-West2 ground motion prediction equations. © 2018, © 2018 Taylor & Francis Group, LLC
- Keywords:
- Ground Motion Simulation ; Near-Field Earthquakes ; Nonstationary Records ; Scenario-Based Simulation ; Earthquake effects ; Equations of motion ; Motion estimation ; Shear flow ; Shear waves ; Stochastic systems ; Wave propagation ; Evolutionary spectrum ; Ground-motion simulation ; Linear time variant ; Near-field earthquakes ; Nonstationary ; Scenario-based simulations ; Stochastic models
- Source: Journal of Earthquake Engineering ; 2018 ; 13632469 (ISSN)
- URL: https://www.tandfonline.com/doi/full/10.1080/13632469.2018.1518279