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On the applicability of standard response spectra for seismic hazard assessment
Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
Journal: Problems of Engineering Seismology
Tome: 44
Number: 2
Year: 2017
Pages: 61-73
UDK: 550.34
DOI: 10.21455/VIS2017.2-4
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Kalinina A., Ammosov S., Bykova V., Tatevossian R. On the applicability of standard response spectra for seismic hazard assessment // . 2017. Т. 44. № 2. С. 61-73. DOI: 10.21455/VIS2017.2-4
@article{KalininaOn2017,
author = "Kalinina, A. and Ammosov, S. and Bykova, V. and Tatevossian, R.",
title = "On the applicability of standard response spectra for seismic hazard assessment",
journal = "Problems of Engineering Seismology",
year = 2017,
volume = "44",
number = "2",
pages = "61-73",
doi = "10.21455/VIS2017.2-4",
language = "English"
}
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Keywords: seismic microzonation, response spectrum, standard response spectrum, degradation curves, equivalent linear modeling, linear modeling, dynamic coefficient, seismogeological model of soil, PGA
Аnnotation: Site response on seismic loading is analyzed in the paper. Two approaches to site profile behavior are considered: elastic (linear) and viscoelastic (equivalent linear modeling). Four typical soil profiles are taken into account; input peak values are within the range from 0.1 to 0.6 g . For all the profiles, when ignoring the non-linear behavior the calculated impacts are still within the standard response spectrum. When the non-linearity is taken into account the figure is completely different. The standard spectrum is abundantly conservative for high frequencies, meanwhile it essentially underestimates the level of hazard at low frequencies. Therefore, the shape of standard spectra in a whole does not describe adequately seismic hazard, especially when the input signal is higher than 0.2 g .
