Earthquake Response Analysis for 2-D Fluid-Structure-Soil Systems

2차원 유체-구조뭍-지반계의 지진응답해석

  • 윤정방 (환국과학기술원 토목공학과) ;
  • 장수혁 (환국과학기술원 토목공학과) ;
  • 김재민 (여수대학교 건설환경공학부) ;
  • 홍선기 (여수대학교 건설환경공학부)
  • Published : 2000.04.01

Abstract

This paper presents a method of seismic analysis for a 2-D fluid-structure-soil interaction systems. With this method, the fluid can be modeled by spurious free 4-node displacement-based fluid elements which use rotational penalty and mass projection technique in conjunction with the one point reduced integration scheme to remove the spurious zero energy modes. The structure and the near-field soil are discretized by the standard 2-D finite elements, while the unbounded far-field soil is represented by the dynamic infinite elements in the frequency domain. Since this method directly models the fluid-structure-soil interaction systems, it can be applied to the dynamic analysis of a 2-D liquid storage structure with complex geometry. Finally, results of seismic analyses are presented for a spent fuel storage tank embedded in a layered half-space and a massive concrete dam on a layered half-space.

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