Analysis of Soil-Structure Interaction Considering Complicated Soil Profile

복잡한 지층 형상을 고려한 지반-구조물 상호작용 해석

  • Park, Jang-Ho (Division of Environmental, Civil and Transportation Engineering, Ajou University)
  • 박장호 (아주대학교 공과대학 환경건설교통공학부)
  • Published : 2006.06.30

Abstract

When a structure is constructed at the site composed of soil, the behavior of a structure is much affected by the characteristics of soil. Therefore, the effect of soil-structure interaction is an important consideration in the design of a structure at the site composed of soil. Precise analysis of soil-structure interaction requires a proper description of soil profile. However, most of approaches are nearly unpractical for soil exhibiting material discontinuity and complex geometry since those cannot consider precisely complicated soil profiles. To overcome these difficulties, an improved integration method is adopted and enables to integrate easily over an element with material discontinuity. As a result the mesh can be generated rapidly and highly structured, leading to regular and precise stiffness matrix. The influence of soil profile on the response is examined by the presented method. It is seen that the presented method can be easily used on soil-structure interaction problems with complicated soil profile and produce reliable results regardless of material discontinuities.

Keywords

References

  1. Luco, J. E., Linear soil-structure interaction, Lawrence Livermore National Lab, UCRL-15272, 1980
  2. Wang, S., 'Coupled boundary and finite elements for dynamic structure-foundation-soil interaction' Computational Structures, Vol. 44, pp. 807-812, 1992 https://doi.org/10.1016/0045-7949(92)90465-C
  3. Wolf, J. P., Dynamic soil-structure-interaction, Prentice-Hall Inc, 1985
  4. Cook, R. D., Malkus, D. S., and Plesha, M. E., Concepts and application of finite element method, John Wiley & Sons Inc, 1989
  5. Zohdi, T. I., and Wriggers, P., 'Computational micro-macro material testing', Archives of Computational Methods in Engineering, Vol. 8, pp. 132-228, 2001
  6. 박장호, 박재균, '불규칙한 다층 물성을 가지는 지반의 지진 응답 해석', 한국지진공학회 논문 집, 제9권, 제6호, pp. 67-73, 2005
  7. Wolf, J. P., Soil-structure interaction analysis in time domain, Prentice-Hall Inc, 1988
  8. Hayashi, Y., Tamura, K., Mora, M., and Takahashi, I., 'Simulation analysis of buildings damaged in the 1995 Kobe, Japan, earthquake considering soilstructure interaction', Earthquake Engineering and Structural Dynamics, Vol. 28, pp. 371-391, 1999 https://doi.org/10.1002/(SICI)1096-9845(199904)28:4<371::AID-EQE822>3.0.CO;2-N
  9. Zhang, Y., Yang, Z., Bielak, J., Contel, J. P., and Elgamal, A., 'Treatment of seismic input and boundary conditions in nonlinear seismic analysis of a bridge ground system,' 16th ASCE Engineering Mechanics Conference, 2003
  10. Lysmer, J. and Kuhlemeyer, R. L., 'Finite dynamic model for infinite media,' Journal of Engineering Mechanics, ASCE, Vol. 95, pp. 859-877, 1969