Seismic Response Considerations in Foundation Design

by Peter H. Edinger, Mueser Rutledge Construction, Engineers, United States,

Document Type: Proceeding Paper

Part of: Foundation Engineering: Current Principles and Practices


There are no generally accepted procedures to determine the potential magnitude of reduction of footing bearing capacity that may result from soil strains or pore pressure changes during an earthquake, except for the limiting case of soil liquefaction. Analyses summarized in this paper indicate that, at present, seismic effects on bearing capacity can only be approximated within broad ranges. The significant conclusion is that the most prudent present approach to seismic design of spread footings is the use of conservative static foundation design parameters.

Subject Headings: Seismic design | Foundation design | Soil liquefaction | Soil pressure | Seismic tests | Soil stress | Seismic loads | Earthquake magnitude scale

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