초록

평탄빙과 수직구조물이 상호작용 하는 경우의 구조물의 동적거동과 빙하중 추정을 하였다. 구조물의 형태는 수직구조물이고 얼음의 파괴형태는 분쇄파괴로 가정하였다. 평탄빙은 구조물과 접촉하여 분쇄파괴가 일어나는 접촉부위와 탄성변형을 하는 외곽부위로 나누었으며, 구조물은 스프링-질량-감쇄로 구성된 1자유도계로 치환하였다. 강성이 큰 구조물과 작은 구조물에 대하여 제시된 모델에 의한 계산결과와 실험결과를 비교하였다. 비교결과는 본 모델이 빙하중과 구조물의 거동추정을 정도있게 할 수 있다는 것을 보여주었다.

Abstract

The dynamic ice forces on a structure with vertical wall and the corresponding responses of the structure are predicted. The structure was simplified as a 1-degree-of freedom system which consists of spring-mass-damper. Ice was divided into two parts : near filed and far field. In the near field, ice sheet moves with constant speed. The results obtained from the numerical simulation using the model and the experiment of indentation with stiff and flexible structures are compared. The comparisons show that the model can predict the behavior of structure and ice load with accuracy.

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참고문헌 (22)

1. Cammaert, A.B.;Muggeridge, D.B. , Ice Interaction with Offshore Structures / v.,pp., 1988
   
2. Sanderson, T.J.O. , Ice Mechanics, Risk to Offshore Structures / v.,pp., 1988
   
3. Laboratory Tests for Dynamic Ice-Structure Interaction , Maattanen, M. , Eng. Struct. / v.,pp.111-116, 1981
   
4. Ice-Structure Interaction during Indentation Tests , Sodhi, D.S. , Proceedings of IUTAM-IAHR Symp. / v.,pp.619-640, 1991
   
5. Muhonen, A.;Karna, T.;Eranti, E.;Riska, K.;Jarvinen, E.;Lehmus, E. , Laboratory Indentation Tests with Thick Freshwater Ice / v.I,pp., 1992
   
6. Confined Compression Test , Timco, G.;Frederking, R. , Cold Regions Science and Technology / v.12,pp.13-28, 1986
   
7. Observations of the Failure Process in Ice Blocks Crushed by a Flat Indentor , Fransson, L.;Olosson, T.;Sandkvist, J. , Proceedings of POAC / v.I,pp.501-514, 1992
   
8. Christensen, F.T.;Timco, G.W.;Nwogu, O.G. , Compliant Model Tests with the Great Belt West Bridge Piers in Ice. Part II : Analysis of Results / v.,pp., 1994
   
9. A Model for the Prediction of Ice-Structure Interaction , Matlock, H.;Dawkins, W.P.;Panak, J.J. , Proceedings of OTC / v.I,pp.687-694, 1969
   
10. Analytical Model for Ice-Structure Interaction , Matlock, H.;Dawkins, W.P.;Panak, J.J. , Journal of Engineering Mechanics, ASCE / v.EM4,pp.1083-1092, 1971
    
11. Measurement and Analysis of Ice Forces on Cook Inlet Structures , Blenkarn, K.A. , Proceedings of OTC / v.II,pp.365-378, 1970
    
12. Model Tests on Ice-Induced Self-Excited Vibration of Cylindrical Structures , Toyama, Y.;Sensu, T.;Minami, M.;Yashima, N. , Proceedings of POAC / v.II,pp.834-844, 1983
    
13. An Experimental Study on Ice-Structure Interaction , Tsuchiya, M.;Kanie, S.;Ikejiri, K.;Yoshida, A.;Saeki, H. , Proceedings of OTC / v.,pp.321-327, 1985
    
14. A Procedure for Dynamics Soil-Structure-Ice Intreraction , Karna T. , Proceedings ISOPE Conf. / v.2,pp.764-771, 1992
    
15. Dynamic Response of 'MOLIKPAQ' to Ice-Structure Interaction , Jefferies, M.G.;Wrigth, W.H. , Proceedings of OMAE / v.4,pp.201-220, 1988
    
16. Measurements of Ice-Induced Vibrations of Channel Markers , Nordlund, O.P.;Karna T.;Jarvinen E. , Proceedings of IAHR Ice Symp. / v.2,pp.537-548, 1988
    
17. Ice Forces on Fixed, Flexible Structures , Maattanen, M.;T. Carstens(ed.) , IHAR State-of-the-art Report by the Working Group on Ice Forces on Structures / v.,pp.107-130, 1980
    
18. 신병천(외) , 극지용 해양구조물의 설계기술 개발(I) / v.,pp., 1994
    
19. 신병천(외) , 극지용 해양구조물의 설계기술 개발(II) / v.,pp., 1995
    
20. Model Tests of Dynamic Ice Loading on the Chinese JZ-20-2 Jacket Platform , Timco, G.;Irani, M.B.;Tseng, J.;Liu, L.K.;Zheng, C.B. , Can. J. Civ. Eng. / v.19,pp.819-832, 1992
    
21. Effective Pressure Measured during Indentation Tests in Freshwater Ice , Sodhi, D.S. , Proceedings of Cold Regions Engineering Conference / v.,pp.619-627, 1991
    
22. Eranti, E. , Dynamics Ice Structure Interaction - Theory and Application / v.,pp., 1992
    

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