Journal Published Online: 01 July 2012
Volume 35, Issue 4

Dynamic Actuator for Centrifuge Modeling of Soil-Structure Interaction

CODEN: GTJODJ

Abstract

This paper presents a new dynamic actuator useful to study soil-structure interactions in a centrifuge. This new dynamic apparatus is based on an amplified piezoelectric actuator. Using this device it is possible to create vibrations in the soil sample of different frequencies and amplitudes. The dynamic actuator consists of a set of weights in a single degree of freedom system plus a piezoelectric actuator and a piezoelectric load cell, which measures the dynamic load. A description of the dynamic actuator and its application to dynamic soil-structure interaction under wind turbines is presented. The calibration of the dynamic actuator and some results of centrifuge tests for shallow and embedded foundations are presented.

Author Information

Cabrera, Miguel
Dept. of Civil and Environmental Engineering Univ. of Los Andes, Bogota, CO
Caicedo, Bernardo
Dept. of Civil and Environmental Engineering Univ. of Los Andes, Bogota, CO
Thorel, Luc
LUNAM Univ., IFSTTAR, Dept. of Geotechnical Engineering and Risks, Physical Modelling in Geotechnics Group, Bouguenais, FR
Pages: 9
Price: $25.00
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Details
Stock #: GTJ104353
ISSN: 0149-6115
DOI: 10.1520/GTJ104353