چكيده لاتين :
it is very common in engineering practice these days to assume that all of
dam supports experience identical ground motion time histories. Past research
studies have demonstrated that seismic ground motion can vary significantly over
distances comparable to the length of the structures. On the other hand, such
structures are subjected to ground motions at their supports that can differ
considerably in amplitude, phase, as well as fr equency content. in order to study the
effect of Spatially Variation ofEarthquake Ground Motion (SVEGM) on the seismic
respons e of embankment dams, the dynamic response of the Masjed Soleiman earth
dam to SVEGM is analyzed. in this research, 2D finit e element model of the dam
body with rigid f oundation is used. A stochastic SVEGM model which accounts for
both incoherence and wave passage effects is used to specify the earthquake
excitation . Based on the analysis results, the normal and shear stress distributions on
the dam body as well as the safety fa ctor evaluation of the most important sliding
surf aces were estimated. Totally, the results of this research indicate that SVEGM
can have a significant effect on the stability ofembankment dams.
