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Soil‐structure interaction effects on strong motion accelerograms recorded on instrument shelters
Author(s) -
Luco J. E.,
Anderson J. G.,
Georgevich M.
Publication year - 1990
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.4290190111
Subject(s) - embedment , parametric statistics , free field , radius , ground motion , soil structure interaction , foundation (evidence) , geotechnical engineering , geology , soil water , strong ground motion , seismology , soil science , engineering , structural engineering , physics , acoustics , mathematics , geography , finite element method , computer science , statistics , computer security , archaeology
The distortions of earthquake ground motions recorded in small instrument shelters as a result of soil‐structure interaction effects are investigated by means of a theoretical parametric study. A total of 12 foundation geometries varying in basal radius, embedment depth and extension above the ground surface and a number of soil profiles including uniform and layered soil models were considered. The results obtained show significant amplification and deamplification of the free‐field ground motion for sufficiently soft soils (β<200 m/sec) and sufficiently high frequencies ( f >20 Hz).