THE RESEARCH OF THE FLUID-SOLID INTERACTION OF THE PASSIVE CONTAINMENT COOLING TANK AND SHIELD BUILDING STRUCTURE WITH SEISMIC LOAD IN AP1000

摘要

The passive containment cooling system is the ultimate heat trap and the key to ensure the safe operation of the AP1000 nuclear power plant. It is very important to keep the reliability of the passive containment cooling system (PCS) in the normal conditions and also in the abnormal conditions, especially in earthquakes. Analysis on the fluid-structure interacted characteristics of the passive containment cooling water storage tanks and shield building structure in earthquake is crucial to the assessment of the effectiveness of the PCS. According to the passive containment cooling water storage tanks and shield building structure prototype size, an experiment model was established to analyze the fluid-structure interacted characteristics of the passive containment cooling water tanks and shield building by the numerical method.