Bulletin of the Seismological Society of America
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Bulletin of the Seismological Society of America; August 1967; v. 57; no. 4; p. 735-746
© 1967 Seismological Society of America
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Foundation—Structure interaction in the analysis of wave motions

R. J. SCAVUZZO

THE UNIVERSITY OF TOLEDO, TOLEDO, OHIO

Abstract

During shock motion, inertia forces of large structures will influence the foundation motion locally. In the present study, the structure-foundation problem is analyzed by coupling an N-mass structure with a one dimensional wave; the resulting solution is formulated as a Volterra integral equation. By using an input wave similar to those encountered in earthquake motions, the significance of this interaction was investigated. Results show that the reduction in spectrum acceleration is significant and depends both on structure frequency and weight for a given foundation input.






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