Ph.D. Tezi Görüntüleme
In this study, it is aimed to perform the stochastic dynamic analysis of damreservoir-foundation systems to spatially varying earthquake ground motion by using
Lagrangian approach. Since significant variation of earthquake ground motion exists overthe base dimensions of large structures such as dams, spatially varying effects of the
ground motion including wave passage effects, incoherence effects and site responseeffects should be taken into account in the analysis of dams. For that reason, variable
number-nodes two dimensional isoparametric fluid finite elements are programmed inFORTRAN language and incorporated into a general-purpose computer program for
stochastic dynamic analysis of structure systems to spatially varying earthquake groundmotion, SVEM, and named as SVEMF. This Ph.D. thesis in which stochastic dynamic
responses of dam-reservoir-foundation systems to spatially varying earthquake groundmotion are determined consists of four main chapters.
The first chapter includes literature researches and formulations of stochasticdynamic analysis of fluid-structure-soil interaction systems by Lagrangian approach. In the
second chapter, developed computer program is introduced and modal analysis of a rigidfluid tank and fluid-structure interaction system. The systems are modelled by finite
element method to verify the developed program. In addition to, the finite element modelof the dam-reservoir-foundation system and earthquake ground motion which was chosen
is given in this section. In third chapter, the mean of maximum response values andvariances obtained from the stochastic analysis of dam-reservoir-foundation system to
spatially varying ground motion are discussed in detail. The conclusions of the researchand recommendations for the future works are given in the fourth chapter.
As a result, it is focused that spatially varying earthquake ground motion should betaken into account in the stochastic dynamic analysis of dam-reservoir-foundation systems.
Key Words: Lagrangian Approach, Finite Element Method, Dam-Reservoir-FoundationInteraction System, Spatially Varying Earthquake Ground Motion,
Stochastic Dynamic Analysis