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Structural Engineering and Mechanics Volume 33, Number 2, September30 2009 , pages 179-191 DOI: https://doi.org/10.12989/sem.2009.33.2.179 |
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Simulation of earthquake records using combination of wavelet analysis and non-stationary Kanai-Tajimi model |
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G. Ghodrati Amiri and A. Bagheri
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| Abstract | ||
| This paper is aimed at combining wavelet multiresolution analysis and nonstationary Kanai-Tajimi model for the simulation of earthquake accelerograms. The proposed approach decomposes earthquake accelerograms using wavelet multiresolution analysis for the simulation of earthquake accelerograms. This study is on the basis of some Iranian earthquake records, namely Naghan 1977, Tabas 1978, Manjil 1990 and Bam 2003. The obtained results indicate that the simulated records preserve the significant properties of the actual accelerograms. In order to investigate the efficiency of the model, the spectral response curves obtained from the simulated accelerograms have been compared with those from the actual records. The results revealed that there is a good agreement between the response spectra of simulated and actual records. | ||
| Key Words | ||
| earthquake ground motion; simulation; non-stationary model; wavelet analysis; Kanai-Tajimi model. | ||
| Address | ||
| G. Ghodrati Amiri and A. Bagheri: Center of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran University of Science & Technology, PO Box 16765-163, Narmak, Tehran 16846, Iran | ||