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Spring‐dashpot‐mass models for foundation vibrations
Author(s) -
Wolf John P.
Publication year - 1997
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/(sici)1096-9845(199709)26:9<931::aid-eqe686>3.0.co;2-m
Subject(s) - embedment , foundation (evidence) , spring (device) , vibration , homogeneous , structural engineering , added mass , soil structure interaction , geotechnical engineering , engineering , mechanics , finite element method , physics , statistical physics , history , quantum mechanics , archaeology
Abstract The foundation on deformable soil, which, in general, radiates energy, can be represented in structural dynamics as a simple spring‐dashpot‐mass model with frequency‐independent coefficients. For the two limiting cases of a site, the homogeneous half‐space and the homogeneous layer fixed at its base, the coefficients are specified in tables for varying parameters such as ratios of dimensions and Poisson's ratio. Rigid foundations on the surface and with embedment are considered for all translational and rotational motions. In a practical analysis of soil–structure interaction this dynamic model of the foundation is coupled directly to that of the structure, whereby a standard dynamics program is used. © 1997 by John Wiley & Sons, Ltd.