Dynamic Analysis of Nuclear Reactor Considering Soil Structure Interaction

In this research paper, the dynamic analysis of complicated structures like nuclear reactor building has been done by considering the site specific response analysis. Analysis is done with and without considering the soil stiffness. First a Nuclear Reactor is considered which is resting on the ground surface and site specific ground response analysis for obtaining free field response of soft soil site is carried out using DEEPSOIL (Youssef M.A.H, 2009). Nuclear reactor is modeled and analyzed using SAP2000 (Computers and Structures, 2007) by considering soil stiffness. The numerical results for the floor response spectra obtained from SAP2000 (Computers and Structures, 2007) are presented in this paper. Secondly the effect of soil-structure interaction on the seismic response of a massive structure with foundation finite element discretization model is used. Using the implemented model and in view of the objective of the work, a parametric study is made. For this purpose, a reactor building deeply embedded into the soil is considered. The results obtained in view of the parameters involved, are presented which suggest that the soil-structure interaction should be considered for the detailed analysis of important structures.