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Date of Publication:2016-01-01

Journal:地震工程与工程振动

Volume:36

Issue:4

Page Number:79-86

ISSN No.:1000-1301

Abstract:This paper is to study the seismic reduction effect of water storage
   tank of AP1000 Nuclear Power Plant(NPP) . Using the Arbitrary Lagrangian
   Eulerian (ALE) algorithm,coupling fine finite element model of AP1000
   shield building for 8 cases of water levels were established to analyze
   the dynamic response of water storage tank when the structure was
   subjected to the NPP artificial earthquake which agree to RG1. 60
   spectrum,parametrically analyze the interaction rule and mechanism of
   the accelerations and displacements at different locations of the shield
   with water heights,heights of air,height ratios of water levels and
   oscillation frequencies of the water tank,and explore the optimal water
   level of the water tank for seismic mitigation. Analysis results show
   that,on the premise that the water supply satisfy the NPP operating
   condition,the minimum dynamic response of the shield building of AP1000
   and the best seismic reduction occurs for the case 3,when the height of
   water is 8. 8 m and height ratio is 0. 75.

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