Dynamic analysis of flexible foundations based on a discrete impedance matrix approach

Andreas Maravas, George Mylonakis, Dimitris L. Karabalis

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

A rigorous computational procedure for the analysis of soil-flexible foundation-structure interaction is developed based on the finite element method. A model of the soil medium is constructed using the ACS SASSI platform and the discrete (in space), frequency dependent, impedance matrix of the system is obtained. The special purpose finite element program ACS SASSI takes into consideration the infinite extent of the soil medium by means of special energy absorbing boundaries. In addition to the above discrete impedance matrix, a complete set of simplified, continuous in space and frequency independent impedance functions are also presented in non-dimensional form. The above impedance matrices are used in a straightforward manner, in conjunction with specialized, e.g. ACS SASSI, or general purpose, e.g. ANSYS, FEM simulation platforms, for the frequency or time domain dynamic/seismic analysis of structures resting on flexible mat foundations.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014
PublisherEuropean Association for Structural Dynamics
Pages675-679
Number of pages5
Volume2014-January
ISBN (Electronic)9789727521654
Publication statusPublished - 1 Jan 2014
Event9th International Conference on Structural Dynamics, EURODYN 2014 - Porto, Portugal
Duration: 30 Jun 20142 Jul 2014

Conference

Conference9th International Conference on Structural Dynamics, EURODYN 2014
CountryPortugal
CityPorto
Period30/06/142/07/14

Keywords

  • Flexible foundations
  • Impedance matrix
  • Soil-structure interaction
  • Structural dynamics

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