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An evolutionary model for earthquake ground motion |
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| Authors: | Armen Der Kiureghian Jorge Crempien |
| Affiliation: | Department of Civil Engineering, University of California, Berkeley, CA 94720, U.S.A. Department of Civil Engineering, University of Chile, Santiago, Chile |
| Abstract: | A simple and versatile evolutionary random process model for describing the earthquake ground motion is proposed. The model is composed of individually modulated component stationary processes, each component representing the energy in the process in a narrow band of frequencies. Methods for identifying the model parameters from a recorded accelerogram and for simulating sample functions are described. The model accounts for both temporal and spectral nonstationarity of the motion and is convenient for random vibration analysis. |
| Keywords: | earthquake evolutionary process ground motion nonstationary process simulation stochastic process |
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