SOIL-STRUCTURE INTERACTION AT HIGHER FREQUENCY FACTORS

Approximate solutions to the forced vibrations of a rigid circular plate attached to the surface of an elastic halfspace are presented for large values of the frequency factor. These results are important when solving soil-structure interaction problems when such problems involve high-frequency factors. This situation arises when high-frequency components of earthquakes are associated with a relatively rigid foundation of a large base and located on a soft terrain. Similar situations occur in cases of blast loadings and impact and in the foundations of large high-speed machinery. These solutions are used to solve the problem of the motion of a rigid mass on an elastic halfspace subjected to steady state and transient horizontal accelerations. From these results, it is deduced that a large rigid mat foundation located on soft terrain significantly attenuates input accelerations and consequently may be useful as the foundation of large massive rigid structures such as nuclear power station. /Author/

• Corporate Authors:

  Wiley (John) & Sons, Limited

  Baffins Lane
  Chichester, Sussex  England 
• Authors:
  • Bycroft, G N
• Publication Date: 1977-7

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 235-248
• Serial:
  • Earthquake Engineering and Structural Dynamics
  • Volume: 5
  • Issue Number: 3
  • Publisher: Wiley (John) & Sons, Limited

Subject/Index Terms

• TRT Terms: Construction equipment; Earthquakes; Elasticity (Mechanics); Foundations; Mass; Presplitting (Blasting); Soft soils; Steady state; Stiffness; Structural engineering; Vibration
• Uncontrolled Terms: Rigid foundations
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00165820
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM