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Attenuation of peak ground acceleration, velocity and displacement based on multiple regression analysis of japanese strong motion records
Author(s) -
Kawashima Kazuhiko,
Aizawa Koh,
Takahashi Kazuyuki
Publication year - 1986
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.4290140204
Subject(s) - attenuation , peak ground acceleration , acceleration , geodesy , displacement (psychology) , subsoil , ground motion , geology , linear regression , seismology , range (aeronautics) , magnitude (astronomy) , sensitivity (control systems) , mathematics , statistics , physics , optics , engineering , soil science , psychology , classical mechanics , aerospace engineering , psychotherapist , soil water , astronomy , electronic engineering
This paper presents the result of multiple regression analysis of 197 sets of two orthogonal horizontal strong motion acceleration records. They were obtained at 67 free field sites in Japan from 90 earthquakes with focal depth less than 60 km. Because sensitivity of the Japanese SMAC accelerograph is appreciably low at the high frequency range, instrument correction was performed on the original data. Each pair of two orthogonal horizontal components was combined in the time domain to get the maximum peak ground motions in the horizontal plane. The records were classified into three groups due to subsoil condition. With the use of multiple regression analysis, empirical formulae of attenuation of the maximum peak ground acceleration, velocity and displacement were proposed for three subsoil conditions.