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Date of Publication:2012-01-01

Journal:水利与建筑工程学报

Volume:10

Issue:5

Page Number:37-40,60

ISSN No.:1672-1144

Abstract:In this paper, the penetrating crack in gravity dam's upper area is supposed to be a horizontal straight one, and the Newmark sliding-block method combined with the elastic time-history analysis of finite element method(FEM) is used to approximately compute the upper dam block's slipping displacement in earthquake, then based on the compata- tion results, the dam's seismic capacity is evaluated. In order to check the method in this paper, the results are compared to the ones computed by the FEM contact method. According to the results, it is shown that the dam in such a badly damaged condition would contain some seismic capacity, and the method used in this paper could generate good results under proper conditions, so the method could be used to approximately compute the slipping displacement of the destroyed dam's upper block in earthquake.

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