Browse > Article
http://dx.doi.org/10.5000/EESK.2004.8.2.027

Dynamic Analysis of Floating Bridge Subject to Earthquake Load Considering Multi-Support Excitation  

권장섭 (서울대학교 지진공학연구센터)
백인열 (경원대학교 토목환경공학과)
장승필 (서울대학교 지구환경시스템공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.8, no.2, 2004 , pp. 27-33 More about this Journal
Abstract
Dynamic response analysis is conducted for a floating bridge subjected to multiple support earthquake excitation. The floating bridge used in this study is supported by discrete floating pontoons and horizontal pretension cables supported at both ends of the bridge. The bridge is modeled with finite elements and the hydrodynamic added mass and added damping due to the surrounding fluid around pontoons are obtained using boundary elements. During the analysis the concept of retardation function is utilized to consider the frequency dependency of the hydrodynamic coefficients. Multiple support excitation is introduced at both ends of the bridge and the time history response is compared to that of a simultaneous excitation. The results show that the multiple support excitation yields larger values in some responses. for example in cable tensions. than the sumultaneous excitation.
Keywords
floating bridge; dynamic response; retardation function; multiple support earthquake excitation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김호경, 서정인, "다중지지된 자정식 현수교의 비선형 지진응답 해석", 한국지진공학회 논문집, 제1권, 제3호, 1997, pp. 45-58.   과학기술학회마을
2 Lwin, M. M., "The Lacey V. Murrow Floating Bridge," USA, Structural Engineering International, 1993. 3, pp. 145-148.
3 Luft, R., "Analysis of Floating Bridges," The Hood Canal Bridge, ASCE/EMD Specialty Conference on Dynamic Response of Structures, Atlanta, Ga., 1981.
4 Hartz, B. J., "Dynamic Response of the Hood Canal Floating Bridge," ASCE/EMD Specialty Conference on Dynamic Response of Structures, Atlanta, Ga., 1981, pp. 16-28.
5 Newman, J. N., Marine Hydrodynamics, The MIT Press, 1986.
6 Solland, G., Haugland, S., and Gustavsen J. H., "The Bergsoysund Floating Bridge," Norway, Structural Engineering International, 1993. 3, pp. 142-144.
7 백인열, 권장섭, 이원표, 장승필, "이산 폰툰형 부유식 교량의 동적 해석", 대한토목학회, 제22권, 제2-A호, 2002, pp. 327-336.   과학기술학회마을
8 Hammarstrom, L. and Forsvall, A., "GVA Pontoon Bridge Concept," Second Symposium on Strait Crossings, Tronheim, Norway, 1990, pp. 497-502.
9 Chang, S. P., Park, J. I., and Kim, J. K., "A Dynamic Analysis of Tension Leg Platform using the General Curved Boundary Element," Proceedings of the Second International Offshore and Polar Engineering Conference, San Francisco USA, Vol. 1, 1992, pp. 228-234.
10 현대건설 기술연구소, "현수교의 시공 단계 해석 시스템 개발", 93STR09, 1994.
11 장승필, 박정일, "비선형 케이블 유한요소에 관한 연구", 한국해안․해양공학회지, 제1권, 제1호, 1989, pp. 93-101.   과학기술학회마을
12 Van Oortmerssen, G., "The motions of a moored ship in waves," NSMB Publication No. 510, Netherlands Ship Model Basin, 1976.
13 Beauchamp, C. and Brocard, D., "Dynamic Response of Floating Bridge to Wave Forces," ASCE/EMD Specialty Conference on Dynamic Response of Structures, Atlanta, Ga., 1981.
14 Cummins, W. E., "The impulse response function and ship motions," David Taylor Model Basin, Report 1661, Washington D.C., 1962.
15 장승필, 김호경, "현수교의 자유진동해석", 한국강구조학회 학술발표회논문집, 1991.