WIT Press

Mode Superposition Techniques In Soil-structure Interaction: A Critical Appraisal

Price

Free (open access)

Paper DOI

10.2495/ERES960531

Volume

23

Pages

12

Published

1996

Size

913 kb

Author(s)

G. Oliveto, I. Calio & A. Santin

Abstract

The performance of the mode superposition techniques used in literature for dynamical soil- structure interacting problems is evaluated by comparison with closed form solutions available for a simplified continuous model. It is shown how some methods converge to the exact solution if a sufficient number of modes are included in the analysis, while others provide erroneous results regardless of the number of modes considered. 1 Introduction It is well known that the response of structures under seismic excitations may be greatly affected by the dynamical interaction between soil and structure. Extensive investigations,

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