Large-scale 3D SSI Analysis using KIESSI-3D Program

KIESSI-3D 프로그램을 이용한 대형 3차원 SSI 해석

  • Lee, Eun-Haeng (Department of Civil and Environmental Engineering, Chonnam National University) ;
  • Kim, Jae-Min (Department of Marine and Civil Engineering, Chonnam National University) ;
  • Seo, Choon-Gyo (Nuclear Civil & Architectural Engineering Dept., KEPCO E&C)
  • 이은행 (전남대학교 대학원 건설.환경공학과) ;
  • 김재민 (전남대학교 해양토목공학과) ;
  • 서춘교 (한국전력기술(주) 원자력토목건축기술그룹)
  • Received : 2013.10.30
  • Accepted : 2013.11.19
  • Published : 2013.12.31


The soil-structure interaction(SSI) effect should be considered to accurately assess the seismic response of structure constructed on soft soil site other than the hard bedrock. Recently, the demand of SSI analysis has increased due to strengthening of the regulatory guidelines of nuclear power plant such as the USNRC SRP 3.7.2. In this study an accuracy and running time of the KIESSI-3D program for large-scale 3D SSI analysis were investigated. The seismic SSI analysis using the KIESSI-3D program was performed for several examples of large-scale three-dimensional soil-structure interaction system. The analysis results were compared with those of the ACS/SASSI program. Good agreements in transfer functions at selected locations showd that KIESSI-3D yields accurate solution for large-scale SSI problem. Moreover, it was found that running speed of the KIESSI-3D for large-scale 3D SSI analysis is much faster than that of the ACS/SASSI about 30~2000 times.


KIESSI-3D;soil-structure interaction;dynamic infinite element;PARDISO;seismic design


Supported by : 지식경제부


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