Dynamic Behavior of a Long-Span Bridge Considering Soil-Structure Interaction

지반-구조물 상호작용을 고려한 장대교량의 동적 거동

  • Lim, Che-Min (Division of Enviromental, Civil and Transportation Engineering, Ajou University) ;
  • Park, Jang-Ho (Division of Enviromental, Civil and Transportation Engineering, Ajou University) ;
  • Shin, Yung-Seok (Division of Enviromental, Civil and Transportation Engineering, Ajou University)
  • 임채민 (아주대학교 공과대학 환경건설교통공학부) ;
  • 박장호 (아주대학교 공과대학 환경건설교통공학부) ;
  • 신영석 (아주대학교 공과대학 환경건설교통공학부)
  • Published : 2004.06.01


The effect of soil-structure interaction becomes important in the design of civil structures such as long-span bridges, which are constructed in the site composed of soft soil. Many methodologies have been developed to account for the proper consideration of soil-structure interaction effect. However, it is difficult to estimate soil-structure interaction effect accurately becaused of many uncertainties. This paper presents the results of study on soil-structure interaction and dynamic response of a long-span bridge designed in the site composed of soft soil. The effect of the soft soil was evaluated by the use of computer program SASSI and a long-span bridge structure was modeled by finite elements. Dynamic response characteristics of a long-span bridge considering soil-structure interaction wereinvestigated.


  1. Wolf, J. P., 'Dynamic Soil Structure Interaction', Pretice-Hall Inc., 1985
  2. Wolf, J. P., 'Soil Structure Interaction Analysis in Time Domain', Pretice-Hall Inc., 1988
  3. Kim, J. K., Koh, H. M., Kwon, K. J. and Yi, J. S. 'A three dimensional transmitting boundary formulated in Cartesian coordinate system for the dynamics of non axisymmetric foundations', Earthquake Engineering and Structural Dyanmics, Vol. 29, pp. 1527-1546, 2000 https://doi.org/10.1002/1096-9845(200010)29:10<1527::AID-EQE978>3.0.CO;2-S
  4. Idriss, I. M., Sun, J. I., 'User's manual for SHAKE 91 : a computer program for conducting equivalent linear seismic response analyses of horizontally layered soil deposits', University of California, Berkeley, 1993
  5. Lysmer, J., Tabatabaie, M., Tajirian, F., Vahdani, S., and Ostadan, F., 'SASSI, a System for Analysis of Soil-Structure Interaction', University of California Berkeley, 1981
  6. Gasparini, D., Vanmarcke, E. H., 'Simulated earthquake motions compatible with prescribed response spectra', Massachusetts Inst. of Technology, 1976
  7. 건설교통부, '도로교 설계기준,' 한국도로교통협회, 2000