Energy Variation of Earthquake Ground Motion in Time Frequency Domain Using Wavelet Transform
Abstract eng: The characteristics of seismic wave energy are examined in this study. The attenuation equation of total seismic wave energy with respect to moment magnitude and hypocentral distance is proposed in order to estimate the seismic intensity. It is concluded that the total seismic wave energy should be better than PGA to estimate seismic motion with respect to earthquake magnitude stably. We also show the time – frequency characteristic of the seismic wave energy of the non-stationary earthquake ground motions based on wavelet transform using Meyer wavelet. It is found that the frequency distribution of seismic wave energy can be mainly explained by the omega-square source model.
Contributors:
Conference Title:
Conference Title:
14th World Conference on Earthquake Engineering
Conference Venue:
Bejing (CN)
Conference Dates:
2008-10-12 / 2008-10-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-12-05, last modified 2014-12-05
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