Analysis of Soil-Structure Interaction of a Long-Span Bridge Considering Incident Angle of Input Ground Motion

입사각을 고려한 장대교량의 지반-구조물 상호작용 해석

  • Park, Jang-Ho (Division of Environmental, Civil and Transportation Engineering, Ajou University) ;
  • Shin, Yung-Seok (Division of Environmental, Civil and Transportation Engineering, Ajou University) ;
  • Choi, Seung-Hwan (Division of Environmental, Civil and Transportation Engineering, Ajou University)
  • 박장호 (아주대학교 공과대학 환경건설교통공학부) ;
  • 신영석 (아주대학교 공과대학 환경건설교통공학부) ;
  • 최승환 (아주대학교 공과대학 환경건설교통공학부)
  • Published : 2008.04.30

Abstract

In a long-span bridge which is constructed on soft soil, it is requested to make a plan considering soil-structure interaction, and soil-structure interaction is partially under consideration at the actual bridge plan. Many researches on dynamic behavior of a bridge affected by soil-structure interacting have been accomplished, but it is difficult to estimate dynamic behavior of a bridge on soft soil accurately because of many uncertainties. This paper presents the results about dynamic response of a long-span suspension bridge in the site composed of soft soil considering incident angle of input ground motion. The effect of soft soil was evaluated by the use o computer program SASSI and a long-span suspension bridge was modeled by finite element program MIDAS. The effect of incident angle of input ground motion was investigated on the dynamic response of a long-span bridge.

Keywords

References

  1. 건축법 제38조 '건축물은 지진에 대하여 안전한구조를 가져야 한다,' 1986
  2. 건설부, 도로교 표준 시방서, 건설부, pp. 759-816, 1992
  3. Betti, R., Abdel-Grhaffar, A. M., and Niazy, A. S., 'Kinematic Soil-Structure Interaction for Long-Span Cable-Supported Bridge,' Earthquake Engineering and Structural Dyanmics, Vol. 22, pp. 415-430, 1993 https://doi.org/10.1002/eqe.4290220505
  4. 현창헌, 윤정방, '다지지점 지진하중을 받는 현수교의 비정상거동해법,' 대한토목학회 1989년도 학술발표회 개요집, pp. 104-107, 1989
  5. 김호경, 서정인, '다중지지된 자정식 현수교의 비선형 지진응답해석,' 한국지진공학회 논문집, 제1권, 제3호, pp. 45-58, 1997
  6. Lysmer, J., Tabatabaie, M., Tajirian, F., Vahdani, S., and Ostadan, F., SASSI, a System for Analysis of Soil-Structure Interaction, University of California, 1981
  7. 임채민, 박장호, 신영석, '지반-구조물 상호작용을 고려한 장대교량의 동적 거동,' 산업안전학회지, 제19권, 제2호, pp. 119-124, 2004
  8. 건설교통부, 도로교설계기준, 한국도로교통협회, pp. 471-510, 2005
  9. Idriss, I. M. and 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