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Dependence of fourier spectrum amplitudes of recorded earthquake accelerations on magnitude, local soil conditions and on depth of sediments
Author(s) -
Trifunac M. D.
Publication year - 1989
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290180706
Subject(s) - amplitude , magnitude (astronomy) , scaling , geology , seismology , fourier transform , spectral line , spectrum (functional analysis) , geotechnical engineering , soil science , physics , geometry , mathematics , optics , astrophysics , quantum mechanics , astronomy
New empirical scaling equations of Fourier amplitude spectra of strong earthquake shaking are presented for the site characterization in terms of local geologic and local soil conditions simultaneously. It is shown that using only the local soil site classification may lead to biased results, and it is suggested that both soil and geologic conditions should be used together in estimation of the site specific spectrum amplitudes.