Applicability of the NGA-West2 damping scaling factors to ground motions recorded in France

M. Bahrampouri; Sanaz Rezaeian; P. Traversa; L. Al Atik; S. Mazzoni; Y. Bozorgnia

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USGS · 70235827

Applicability of the NGA-West2 damping scaling factors to ground motions recorded in France

M. Bahrampouri·Sanaz Rezaeian·P. Traversa·L. Al Atik·S. Mazzoni·Y. Bozorgnia

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Abstract

This paper presents a summary of the applicability of the NGA-West2 damping scaling factors to ground motions recorded in France. In developing ground motion models for response spectra, generally, the damping of the oscillator is set to a reference value of five percent of the critical damping. Damping scaling factors (DSF) are used to translate the predictions of 5%-damped ground motion models to any damping ratio of interest. Rezaeian et al. (2014) developed a DSF model based on the NGA-West2 database, capturing the effect of oscillator period, event magnitude, and source-to-site distance. This paper investigates the applicability of that model for the horizontal component of ground motions recorded in France, using Traversa et al. (2020) database for the analysis.

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Source-reported bounding extent: 42.42799431996892° to 51.0550130792366° latitude; -5.187208647781006° to 8.200901685537644° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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M. Bahrampouri, Sanaz Rezaeian, P. Traversa, L. Al Atik, S. Mazzoni, Y. Bozorgnia. 2022. Applicability of the NGA-West2 damping scaling factors to ground motions recorded in France. https://pubs.usgs.gov/publication/70235827

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