STRUCTURAL VIBRATION ISOLATION BY ROWS OF PILES

Three-dimensional passive structural vibration isolation by rows of piles is studied numerically by the frequency domain boundary element method. The source of soil vibration is assumed to be a vertical force harmonically varying with time. The piles and the soil material behaviour are assumed to be linear elastic or viscoelastic. Coupling between the soil and piles is accomplished through equilibrium and compatibility at their interfaces. Both continuous and discontinuous quadratic quadrilateral elements are employed and advanced direct numerical integration schemes are used for the treatment of the various singular integrals. The full-space dynamic fundamental solution is used and this requires a discretization of not only the substructure interfaces but also a finite portion of the free soil surface around the vibration isolation system. Symmetry and antisymmetry considerations reduce the complexity of the problem considerably. The above methodology is tested for accuracy by solving a problem of active vibration isolation by trenches for which there exist numerical solutions and then applied to the problem of structural vibration isolation by rows of piles and compared with an existing approximate analytical solution.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1853123153
• Corporate Authors:

  Computational Mechanics Publications

  Ashurst Lodge, Ashurst
  Southampton SO40 7AA,   United Kingdom 
• Authors:
  • Kattis, S E
  • Polyzos, D
  • Beskos, D E
• Conference:
  • Seventh International Conference on Soil Dynamics and Earthquake Engineering (SDEE 95)
  • Location: Crete, Greece
  • Date: 1995-5-24 to 1995-5-26
• Publication Date: 1995

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 509-516

Subject/Index Terms

• TRT Terms: Boundary element method; Earthquake engineering; Frequency domain analysis; Soil structure interaction; Structures; Support piles; Vibration isolation
• Uncontrolled Terms: Three dimensional analysis
• Subject Areas: Bridges and other structures; Geotechnology; Highways; I20: Design and Planning of Transport Infrastructure; I42: Soil Mechanics;

Filing Info

• Accession Number: 00760269
• Record Type: Publication
• ISBN: 1853123153
• Files: TRIS
• Created Date: Feb 18 1999 12:00AM