Nonlinear dynamic analyses of an earth dam

Jean-Herve Prevost, Ahmed M. Abdel-Ghaffar, Sara J. Lacy

Research output: Contribution to journalArticle

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Abstract

The following investigations are presented: (1) Comparison between the results of 2D nonlinear and 3D nonlinear dynamic finite element analyses of an earth dam subject to two very different input ground motions; and (2) comparison between measured and computed earthquake responses of the dam. The study is based on rigorous nonlinear hysteretic analyses utilizing a multi-surface plasticity theory. The backbone shear stress-strain curve is assumed hyperbolic and symmetrical about the origin. Detailed comparisons of induced stresses, strains, accelerations, and permanent deformations at various locations in the dam are presented. The effects of three-dimensionality on the dynamic response, particularly on resulting permanent deformations, are assessed. The suitability of 2D analyses in determining the dynamic behavior of such structures is evaluated.

Original languageEnglish (US)
Pages (from-to)882-897
Number of pages16
JournalJournal of Geotechnical Engineering
Volume111
Issue number7
DOIs
StatePublished - Jan 1 1985

All Science Journal Classification (ASJC) codes

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

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