Seismic Response Analysis of Rectangular Tank with Base-Isolation System

구형 면진유체저장조의 지진시 거동해석

  • Published : 1995.03.01

Abstract

Spent fuel storage pool should maintain its structural integrity and the safety of stored spent fuels against design earthquake load. In this study, the seismic response analysis of the pool with LRB isolation system is performed for two different earthquakes. To investigate the seismic response of the base isolated pool, the analysis results are compared with the responses of conventional type. In conclusion, the base-isolation system is effective to reduce the seismic forces transmitted to the superstructure and the responses, and to secure the safety of the storage pool and stored spent fuel.

사용후핵연료 저장조는 지진하중에 대하여 운영기간중 자체의 구조적 건전성 및 저장된 사용후핵료의 안전성을 확보할 수 있어야 한다. 본 연구에서는 LRB 면진장치를 설치한 사용후핵연료 면진저장조의 지진시 거동특성을 파악하기 위하여 서로 다른 특성을 갖는 두종류의 지진에 대하여 지진해석을 하여 그 결과를 비면진 저장조에서의 응답과 비교하였다. 면진장치를 사용함으로써 지진시 상부구조로 전달되는 지진력과 응답을 크게 감소시켜 저장조와 저장된 사용후액연료의 안전성 확보에 유리한 것으로 나타났다.

Keywords

References

  1. Soil Dynamics and Earthquake Engineering v.5 Aseismic Base Isolation : Review and Bibliography Kelly,J.M.
  2. Proc. 9th World Conf. Earthquake Engineering Nuclear Spent Fuel Storage Pools on Aseismic Bearing Pads Bouchon,M.
  3. J. of Eng. Mech. v.116 Shake Table Test of Cylindrical Water Tank in Base-Isolated Structures Chalhoub,M.S.;J.M.Kelly
  4. Proc. 10th World Conf. Earthquake Engineering Fluid-Structure Interaction Analysis for Spent Fuel Storage Structures Yun,C.B.(et al.)
  5. SMiR-T-12 v.K Performance for Base-Isolated Spent Fuel Storage Pool Structures Kim,J.(et al.)