Ground motion prediction equations (GMPEs) for elastic response spectra in the Iranian plateau using Gene Expression Programming (GEP)

2014 ◽  
Vol 26 (6) ◽  
pp. 2825-2839 ◽  
Author(s):  
Gholamreza Ghodrati Amiri ◽  
Mohamad Shamekhi Amiri ◽  
Zahra Tabrizian
Keyword(s):  
Gene Expression ◽  
Ground Motion ◽  
Gene Expression Programming ◽  
Response Spectra ◽  
Elastic Response ◽  
Motion Prediction ◽  
Ground Motion Prediction Equations ◽  
Ground Motion Prediction ◽  
Iranian Plateau ◽  
Elastic Response Spectra

Ground Motion Prediction Equation (“Attenuation Relationship”) for Inelastic Response Spectra

2010 ◽  
Vol 26 (1) ◽  
pp. 1-23 ◽  
Author(s):  
Yousef Bozorgnia ◽  
Mahmoud M. Hachem ◽  
Kenneth W. Campbell
Keyword(s):  
Ground Motion ◽  
Response Spectra ◽  
Prediction Equation ◽  
Elastic Response ◽  
Motion Prediction ◽  
Ground Motion Prediction Equation ◽  
Attenuation Relationship ◽  
Ground Motion Prediction ◽  
Inelastic Response ◽  
Local Soil

This paper presents the process and fundamental results of a comprehensive ground motion prediction equation (GMPE, or “attenuation” relationship) developed for inelastic response spectra. We used over 3,100 horizontal ground motions recorded in 64 earthquakes with moment magnitudes ranging from 4.3–7.9 and rupture distances ranging from 0.1–199 km. For each record, we computed inelastic spectra for ductility ranging from one (elastic response) to eight. Our GMPE correlates inelastic spectral ordinates to earthquake magnitude, site-to-source distance, fault mechanism, local soil properties, and basin effects. The developed GMPE is used in both deterministic and probabilistic hazard analyses to directly generate inelastic spectra. This is in contrast to developing “attenuation” relationships for elastic response spectra, carrying out a hazard analysis, and subsequently adopting approximate rules to derive inelastic response from elastic spectra.

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