Loading...

Seismic responses of arch dams due to non-uniform ground motions

Ghaemian, M ; Sharif University of Technology | 2012

841 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.scient.2012.09.003
  3. Publisher: 2012
  4. Abstract:
  5. 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
  6. Keywords:
  7. Multiple support excitations ; Non-uniform ground motion ; Seismic analysis ; Spatial variation ; Dam foundation ; Dam-reservoir systems ; Finite element programs ; Ground accelerations ; Ground motions ; Multiple support excitations ; Nodal points ; Pseudo static displacement ; Spatial variations ; Uniform excitation ; Arch dams ; Finite element method ; Reservoirs (water) ; Dam ; Foundation ; Ground motion ; Seismic response ; Spatiotemporal analysis ; California ; Los Angeles [California] ; Pacoima ; United States
  8. Source: Scientia Iranica ; Volume 19, Issue 6 , December , 2012 , Pages 1431-1436 ; 10263098 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1026309812001964