Impedance functions and input motions for embedded square foundations

Akira Mita, J. Enrique Luco

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


Tables of impedance functions and effective input motions for rigid square foundations embedded in a uniform elastic half-space are presented. The tables include numerical results obtained by a hybrid approach for embedment to half-width ratios ranging from 1/3 to 3/2 and by a boundary element method for surface foundations. Media characterized by Poisson's ratios of 1/4, 1/3 and 0.4 are considered. The impedance functions include vertical, torsional, horizontal, rocking, and coupling terms. Effective foundation input motions for vertically incident P and SH waves and for horizontally incident SH waves are also listed.

Original languageEnglish
Pages (from-to)491-503
Number of pages13
JournalJournal of Geotechnical Engineering
Issue number4
Publication statusPublished - 1989 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


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