Dynamic Actuator for Centrifuge Modeling of Soil-Structure Interaction

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.

• Record URL:
  https://doi.org/10.1520/GTJ104353
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01496115
• Supplemental Notes:
  • Abstract used with permission of ASTM International
• Authors:
  • Cabrera, Miguel Angel
  • Caicedo, Bernardo
  • Thorel, Luc
• Publication Date: 2012-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 539-547
• Serial:
  • Geotechnical Testing Journal
  • Volume: 35
  • Issue Number: 4
  • Publisher: ASTM International
  • ISSN: 0149-6115
  • Serial URL: http://www.astm.org/DIGITAL_LIBRARY/JOURNALS/GEOTECH/

Subject/Index Terms

• TRT Terms: Actuators; Centrifuges; Dynamic loads; Foundations; Piezoelectricity; Soil structure interaction; Turbines; Wind
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 01486752
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 16 2013 7:22AM