SEISMIC RESPONSE OF STRIP FOOTINGS ON ZONED VISCOELASTIC SOILS

A study is reported in which the seismic response of foundations resting on the surface or embedded in an alluvial deposit that rests on a viscoelastic half-space is analyzed. Thus, the effects of the inclusion shape, the foundation embedment, and the bedrock compliance on the foundation motion may be analyzed. To analyze the effect of the soil deposit profile for each seismic excitation, semi- elliptical deposits with axis ratios ranging from unity (semicircle) to infinity (boundless horizontal layer) are considered. For each geometry, values of the ratio between the rigidities of the bedrock and soil deposit ranging from unity (homogenous half-space) to a very large quantity (rigid bedrock) are as sumed in order to analyze the effect of the bedrock compliance. Also, several layers of foundation embedments are assumed. The details of the analysis which was carried out in 3 steps are described. The study findings are discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Dominguez, J
  • Abascal, R
• Publication Date: 1989-5

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 913-934
• Serial:
  • Journal of Engineering Mechanics
  • Volume: 115
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9399
  • EISSN: 1943-7889
  • Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

• TRT Terms: Alluvium; Bedrock; Compliance; Foundations; Seismicity; Soils; Strip footings; Viscoelasticity
• Uncontrolled Terms: Seismic response
• Subject Areas: Bridges and other structures; Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00485126
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 30 1989 12:00AM