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On the significance of phase content in earthquake ground motions
Author(s) -
Ohsaki Y.
Publication year - 1979
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.4290070504
Subject(s) - harmonic , earthquake engineering , phase (matter) , seismology , amplitude , geology , content (measure theory) , physics , mathematics , acoustics , mathematical analysis , optics , quantum mechanics
A number of problems relating to characteristics of harmonic phase angles contained in earthquake ground motions are discussed, which have been mostly overlooked in the past in contrast with the importance placed on harmonic amplitudes. Particularly, the significance of the concept of phase differences in certain properties of earthquake ground motions is emphasized. A few applications of this new concept to earthquake engineering problems are illustrated as well.