Abstract
In order to research the prestressed concrete containment structure under Strong Earthquake, the multi-layer shell elements has been used to set up 3-d finite element model , time history and the static nonlinear analysis is carried out on the structure. Nonlinear finite element of a 1/10-scale PCCV model was analyzed and the dynamic characteristics of the model, the initial stiffness, the maximum base shear and the maximal displacement on the top of the cylinder had been calculated. Research show when ground motion reached 3g, tensile stress of concrete on wall and equipment at the bottom of the valve hole have exceeded 4MPa, but tensile stress of concrete on dome have less than 0.5MPa. The finite model calculated results are in good agreement with the results of previous papers of Pseudo dynamic test. It is concluded that this containment vessel has sufficient aseismic safety. It can provide a reference for seismic design.
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