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Seismic Assessment and Performance of Nonstructural Components Affected by Structural Modeling
Jieun Hur,Eric Althoff,Halil Sezen,Richard Denning,Tunc Aldemir 한국원자력학회 2017 Nuclear Engineering and Technology Vol.49 No.2
Seismic probabilistic risk assessment (SPRA) requires a large number of simulations toevaluate the seismic vulnerability of structural and nonstructural components in nuclearpower plants. The effect of structural modeling and analysis assumptions on dynamicanalysis of 3D and simplified 2D stick models of auxiliary buildings and the attachednonstructural components is investigated. Dynamic characteristics and seismic performanceof building models are also evaluated, as well as the computational accuracy of themodels. The presented results provide a better understanding of the dynamic behavior andseismic performance of auxiliary buildings. The results also help to quantify the impact ofuncertainties associated with modeling and analysis of simplified numerical models ofstructural and nonstructural components subjected to seismic shaking on the predictedseismic failure probabilities of these systems.