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Analytical approach to calculation of response spectra from seismological models of ground motion

January 1, 1988

An analytical approach to calculate response spectra from seismological models of ground motion is presented. Seismological models have three major advantages over empirical models: (1) they help in an understanding of the physics of earthquake mechanisms, (2) they can be used to predict ground motions for future earthquakes and (3) they can be extrapolated to cases where there are no data available. As shown with this study, these models also present a convenient form for the calculation of response spectra, by using the methods of random vibration theory, for a given magnitude and site conditions. The first part of the paper reviews the past models for ground motion description, and introduces the available seismological models. Then, the random vibration equations for the spectral response are presented. The nonstationarity, spectral bandwidth and the correlation of the peaks are considered in the calculation of the peak response.

Citation Information

Publication Year 1988
Title Analytical approach to calculation of response spectra from seismological models of ground motion
DOI 10.1002/eqe.4290160109
Authors Erdal Safak
Publication Type Article
Publication Subtype Journal Article
Series Title Earthquake Engineering and Structural Dynamics
Series Number
Index ID 70014700
Record Source USGS Publications Warehouse
USGS Organization