Static Elastoplastic Analysis of Turbine House under Different Lateral Loading MoDES in Conventional Island of Nuclear Power Plant

Abstract

Nuclear island in nuclear power plant requires that under the extreme safety shutdown earthquake action, the collapse of the turbine house of conventional island shall not affect the safety of nuclear island, so as to ensure the functional integrity of nuclear island. At present, the way to meet this requirement is to carry out elastoplastic analysis on the turbine house of the regular island under the action of the ultimate safe earthquake to ensure that it does not collapse and its deformation meets the deformation requirements of the standard rare earthquake. Structure elastic-plastic analysis method with static analysis and dynamic elastic-plastic time history analysis, in this paper, the ci turbine room nappe analyzed, and compared the five kinds of lateral load loading mode of static elastoplastic analysis results, the seismic performance of the structure, puts forward the layer shear lateral loading mode suitable for ci turbine room structure static elastoplastic analysis.