Conclusions
From the above results, it can be seen that the earthquake motion duration and spectral intensity factor are related with the magnitude, epicentral distance and intensity as follows:
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1)
The stationary duration increases with increasing magnitude and epicentral distance.
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2)
The spectral intensity factor increases with incresing magnitude and decreasing epicentral distance.
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3)
Both the stationary duration and the spectral intensity factor increase as intensity goes greater.
The stochastic model of bedrock earthquake motion and its parameters presented in this paper provide a basic method for calculating the random earthquake load suitable to dynamical aseismic analysis and aseismic design for modern engineering structures. They have laid a foundation for further study on the stochastic model of earthquake ground motion.
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The project of Shaanxi Province Natural Science Found.
The English version is improved by Professor Jie-Fan HUANG, Department of Geology, Peking University.
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Niu, DT. Stochastic model of bedrock earthquake motion and determination of its parameters. Acta Seismologica Sinica 8, 155–159 (1995). https://doi.org/10.1007/BF02651009
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DOI: https://doi.org/10.1007/BF02651009