Study on Low-Frequency Characterizations of Pulse-Type Ground Motions through Multi-Resolution Analysis |
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Authors: | Guo-Chen Zhao Lili Xie |
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Institution: | Department of Civil Engineering, Harbin Institute of Technology, Weihai, China |
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Abstract: | This article makes an attempt to investigate the low-frequency characterizations of pulse-type ground motions through ground motion components instead of original records. A decomposed method based on multi-resolution analysis is introduced in this article. The accuracy and validity of the method is tested in frequency domain, time domain and dynamic response. A dataset of 398 low-frequency components is obtained after the decomposition of 91 typical pulse-type records. A probabilistic model to describe the proportion of low-frequency components in corresponding original ground motions is established. At last, the decomposed method is used to investigate the impulsive characterizations of pulse-type ground motions. |
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Keywords: | Pulse-Type Ground Motions Decomposed Method Multi-Resolution Analysis Ground Motion Components Low-Frequency Characterizations |
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