Earthquake Response of Two Adjacent Buildings Founded at Different Depths

기초가 서로 다른 빌딩과 지반의 상호작용에 의한 지진응답 해석

  • 이종세 (한양대학교 토목환경공학과) ;
  • 윤순종 (홍익대학교 토목공학과) ;
  • 김동우 (한양대학교 토목환경공학과)
  • Published : 2004.12.01

Abstract

The aim of this paper is to study the interaction between adjacent buildings with different foundation levels under earthquake loading conditions. Buildings and soil are represented by two different models. In the first case, the building itself is modeled with standard frame element, whereas the soil behavior is stimulated by a special grid model. In the second case, the building and soil are represented by plane stress or plane strain elements. The modulus of elasticity of the 9round as well as the varying relations of inertia have a strong influence on the section forces within the buildings. The Interaction between the two buildings is demonstrated and discussed via numerical examples using the proposed method.

본 논문에서는 이웃한 빌딩의 기초가 서로 상이한 경우, 구조물과 지반의 상호작용에 대한 지진응답해석을 하였다. 세 가지 시스템에 대한 두 가지 모델에 대하여 연구하였다. 첫째 모델의 경우에는 빌딩은 프레임모델로 지반은 그리드모델로 설정하였고, 둘째 모델의 경우에는 구조물과 지반을 평면응력과 평면변형률로 모델화하였다. 또한 변형된 관성모멘트는 지반의 탄성모듈과 함께 구조물의 단면력에 영향을 미치므로 함께 고려되었다. 근사해석으로는 유한요소법과 응답스펙트럼이 적용되었으며 제시된 예를 통하여 안전성을 논증하였다.

Keywords

References

  1. Bachmann, H. 'Seismic retrofitting of the structure,' Basel. Swiss, 1995
  2. Seed, H.B., Ugas, C., Lysmer, J., 'Site dependent spectra for earthquake resistant design.' Bulletin of the Seismological Society of America 66, 1976
  3. DIN 4149. Section 1., 'Construction in german earthquake areas. Load case, design, construction practice of regular structures,' April 1981
  4. Chopra Anil K. 'Dynamics of structures,' Prentice-Hall, Inc., 2002
  5. Harbord, R., 'FEMAS: Finite element method for static and dynamic analysys offrame structures.' TU Berlin, 1994
  6. Kraus, S., Kim. D. W., 'GEMAS: Mixed element method for the analysis of shellstructure,' TU Berlin, 1996
  7. Bathe, K.-J., 'Finite Element Procedures,' Prentice-Hall. Inc., 1996
  8. 'Earthquake Spectra,' Special Supplement to Volume11, November 1996
  9. 'Uniform Building Code, Earthquake Regulations ,' International conference of Building Officials, USA, 1998
  10. Befan, Z. and Kim, D. W., 'Calculation research of earthquake-safety interpretation of building with different numbers of basements in hanging position,' TU Berlin, 1997