Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
권호 표지

Seismic Response Analysis of Dam-Reservoir System Using Transmitting Boundary

전달경계를 이용한 댐-호소 계의 지진응답해석

  • Published : 1999.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

One of the major difficulties in the seismic analysis of a dam-reservoir system is the treatment of the energy radiation in the upstream direction of the reservoir. In the paper, a new transmitting boundary is presented that can model properly the radiation of energy in the far field direction of a semi-infinite reservoir with constant depth. In the newly developed method, effects of surface wave motion are taken into accounted and the reservoir-foundation interaction is approximately accounted for with an absorbing boundary condition. If a dam has vertical upstream face and the infinitely long reservoir maintains constant depth, then the proposed transmitting boundary can be directly coupled with the model of dam body. In present study, the dam body is assumed to behave elastically and modeled by finite element method. Seismic responses of a dam model are investigated using the newly developed transmitting boundary.

댐-호소 계의 지진응답해석에 있어서의 어려운 문제 중 하나는 댐 상류방향으로의 에너지 방사를 적절하게 처리하는 것이다 본 논문에서는 깊이가 일정한 호소 원역으로의 에너지 방사를 잘 모델링할 수 있는 전달경계를 제시하였다 개발된 방법에서 수면파의 영향을 고려하였으며 호소-지반의 상호작용을 근사적으로 표현할수 있는 흡수경계조건도 도입하였다 댐과 호소의 경계면이 지표면에 수직하고 호소의 깊이가 일정할 경우에는 제안된 전달경계를 댐체의 모델에 직접 연결할 수 있다 댐체는 선형탄성거동을 가정하여 유한요소로 모델링 하였다 얻어진 댐-호소 계의 운동방정식을 이용하여 댐의 지진응답특성을 조사하였다

Keywords

References

  1. 내진설계기준연구(Ⅱ) 건설교통부
  2. Transaction, ASCE v.98 Water pressures on dams during earthquakes Westergaard, H. M.
  3. Journal of Engi-neering Mechanics Division, ASCE, Proc. Paper 5695 v.93 no.EM6 Hydrodynamic pressure in dams during earthquake Chopra, A. K.
  4. Journal of the Engineering Mechanics Division, ASCE v.108 Boundary element analysis of fluid damais Hanna, Y. G.;Humar, J. L.
  5. Earthquake Engineering and Structural Dynamics v.16 Boundary element reservoir model for seismic analysis of gravity dams Humar, J. L.;Jablonski, A. M.
  6. Earthquake Engineering and Structural Dynamics v.10 Hydrodynamic effects in the dynamic response of concrete gravity dams Hall, J. F.;Chopra, A. K.
  7. Earthquake Engi-neering and Structrual Dynamics v.10 Two-dimensional dynmic analysis of concrete gravity and embankment dams including hydrodynamic effects Hall, J. F.;Chopra, A. K.
  8. Geotechnical Engineering Report GR86-2 Analysis of the response of dams to earthquake Lofti, V.
  9. Earthquake Engineering and Structural Dynamics v.16 Hydrodynamic-stiffness matrix based on boundary elements for time-domain dam-reservoir-soil analysis Wepf, D. H.;Wolf, J. P.;Bachmann, H.
  10. International Journal for Numerical Methods in Engineering v.31 On fem-bem coupling for fluid-structure interaction analyses in the time domain Von Estorff, O.;Antes, H.
  11. Ph.D. Thesis, Rensselaer Poly-technic Institute Application of the Boundary Element Method to Elastic Wave Scattering Problems Kim, J. K.
  12. Theory and Mechanics Quantitative Seismology Aki, K.;Richards, P. G.
  13. 석사학위논문,서울대학교 유연한 댐 체와 압축성 유체의 상호작용을 고려한 대-호소 시스템의 지진응답 해석 조정래
  14. 98학술발표회 논문집 전달경계를 사용한 댐-호소수 계 지진응답해석 김재관;조정래
  15. Performance and Research Needs Earthquake Engineering for Concrete Dams: Design NRC