An investigation into the base sliding response of rigid concrete gravity dams to dynamic loading

R. A. Mir*, C. A. Taylor

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

20 Citations (Scopus)

Abstract

A series of dynamic slip tests on a concrete gravity dam model was conducted on a shaking table. The aim of the experiments was to investigate the dynamically induced sliding and overturning characteristics of a typical low height gravity dam monolith cracked at its base. Tests indicated that downstream sliding is the main instability that could be expected during an earthquake. Dynamic, finite element analyses of the experimental model, using a Lagrangian contact surface algorithm, were also performed. A comparison of the experimental and analytical responses indicated that the seismically induced slip can be predicted reasonably by such a contact surface algorithm implemented in a standard finite element package. A comparison of observed displacements with Newmarks sliding block displacements indicated that a conservative estimate of seismic induced slip of a gravity dam could be obtained by using Newmarks sliding block concept, generally adopted for earth dams and embankments.

Original languageEnglish
Pages (from-to)79-98
Number of pages20
JournalEarthquake Engineering and Structural Dynamics
Volume25
Issue number1
DOIs
Publication statusPublished - 1 Jan 1996

Keywords

  • Gravity dams
  • Models
  • Shaking table
  • Sliding

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