Seismic responses of arch dams due to non-uniform ground motionsOriginal Research Article
Author(s):
Abstract:
In the present paper، spatially variation input effects on seismic responses of arch dams have been studied. Recorded ground accelerations at the dam foundation interface of Pacoima dam during January 13، 2001 were used for the purpose of this investigation. A numerical finite element model was developed for dynamic analysis of the dam reservoir system. The modified version of NSAD-DRI finite element program was used for the analysis and the ground acceleration time histories were interpolated at all dam foundation interface nodal points. Total and pseudo static displacements as well as developed stresses due to uniform and non uniform excitations are obtained. The results reveal that multiple support excitations can have profound effects on the dam responses.
Language:
Persian
Published:
Scientia Iranica, Volume:19 Issue: 6, 2012
Pages:
1431 to 1436
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