Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ground motion prediction equations for higher order parameters
https://orcid.org/0000-0002-5596-9244
Abstract Amplitude, duration and frequency content are the three key characteristics of a ground motion time history. Few ground motion parameters quantifies two and rarely three of these features. There are even fewer ground motion prediction equations (GMPEs) available for these ground motion parameters. In this study, new GMPEs are derived for a total of 21 parameters representing peak amplitude, energy, intensity, frequency, duration and evolutionary characteristics of a ground motion acceleration time history. An extensive dataset of Japan, comprising 96880 ground motions with magnitudes ranging from Mw 5.0 to Mw 9.0 is used to calibrate the model. The model includes the effects of magnitude saturation, tectonic source mechanism, focal mechanism, geometric and anelastic attenuation, volcanic arc and site effects. Median results of estimates are compared against recorded data of the twin Kumamoto earthquakes of Mw 7.3 and 6.5. These results are also compared against previously developed GMPEs of the region. Further, towards the verification of the functional form, behavior of inter and intra event residuals is verified against magnitude (Mw), distance and shear wave velocity (Vs30) respectively.
Highlights Literature review indicates the need for development of ground motion prediction equations for many higher order parameters. Model analysis confirms lower magnitude saturation at near fault distances for major and great earthquakes. Comparison of estimates with other regionally established models verifies the effectiveness of the current model.
Ground motion prediction equations for higher order parameters
https://orcid.org/0000-0002-5596-9244
Abstract Amplitude, duration and frequency content are the three key characteristics of a ground motion time history. Few ground motion parameters quantifies two and rarely three of these features. There are even fewer ground motion prediction equations (GMPEs) available for these ground motion parameters. In this study, new GMPEs are derived for a total of 21 parameters representing peak amplitude, energy, intensity, frequency, duration and evolutionary characteristics of a ground motion acceleration time history. An extensive dataset of Japan, comprising 96880 ground motions with magnitudes ranging from Mw 5.0 to Mw 9.0 is used to calibrate the model. The model includes the effects of magnitude saturation, tectonic source mechanism, focal mechanism, geometric and anelastic attenuation, volcanic arc and site effects. Median results of estimates are compared against recorded data of the twin Kumamoto earthquakes of Mw 7.3 and 6.5. These results are also compared against previously developed GMPEs of the region. Further, towards the verification of the functional form, behavior of inter and intra event residuals is verified against magnitude (Mw), distance and shear wave velocity (Vs30) respectively.
Highlights Literature review indicates the need for development of ground motion prediction equations for many higher order parameters. Model analysis confirms lower magnitude saturation at near fault distances for major and great earthquakes. Comparison of estimates with other regionally established models verifies the effectiveness of the current model.
Ground motion prediction equations for higher order parameters
https://orcid.org/0000-0002-5596-9244
Abstract Amplitude, duration and frequency content are the three key characteristics of a ground motion time history. Few ground motion parameters quantifies two and rarely three of these features. There are even fewer ground motion prediction equations (GMPEs) available for these ground motion parameters. In this study, new GMPEs are derived for a total of 21 parameters representing peak amplitude, energy, intensity, frequency, duration and evolutionary characteristics of a ground motion acceleration time history. An extensive dataset of Japan, comprising 96880 ground motions with magnitudes ranging from Mw 5.0 to Mw 9.0 is used to calibrate the model. The model includes the effects of magnitude saturation, tectonic source mechanism, focal mechanism, geometric and anelastic attenuation, volcanic arc and site effects. Median results of estimates are compared against recorded data of the twin Kumamoto earthquakes of Mw 7.3 and 6.5. These results are also compared against previously developed GMPEs of the region. Further, towards the verification of the functional form, behavior of inter and intra event residuals is verified against magnitude (Mw), distance and shear wave velocity (Vs30) respectively.
Highlights Literature review indicates the need for development of ground motion prediction equations for many higher order parameters. Model analysis confirms lower magnitude saturation at near fault distances for major and great earthquakes. Comparison of estimates with other regionally established models verifies the effectiveness of the current model.
Ground motion prediction equations for higher order parameters
Podili, Bhargavi (Autor:in) / Raghukanth, S.T.G. (Autor:in)
Soil Dynamics and Earthquake Engineering ; 118 ; 98-110
25.11.2018
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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