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Design Formula for Launching Nose of ILM Bridge Considering the Interaction Behavior with Superstructure Sections  

Lee, Hwan-Woo (부경대학교 건설공학부)
Jang, Jae-Youp (부경대학교 토목공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.23, no.1, 2010 , pp. 53-60 More about this Journal
Abstract
In constructing ILM(Incremental Launching Method) bridges, a launching nose is generally used in order to absorb temporary stress occurring during launching. The sectional forces of superstructure of ILM bridges, which occurs during launching, varies significantly according to the length, weight and stiffness of the launching nose. Thus in order to guarantee the safety of section of ILM bridges, the change of stress according to interaction behavior between launching nose and superstructure should be considered. However, the span division and span length are often decided based on previous cases in practice. It makes the design sections of launching nose are similar in spite of different projects. The designer's anxiety to optimize the launching nose to affect the optimum design of superstructure is also weak. In this study, an design formular to optimize the nose is proposed by using the analysis formular of nose-deck interaction and the design level of ILM bridges constructed on 00 Expressway is examined. According to the result of this study, the proposed design formulas are expected to make a significant contribution to section design that is economically efficient and at the same time guarantees the safety of the superstructure and launching noses of ILM bridges regardless of span length.
Keywords
incremental launching method; launching nose; analysis formular of nose-deck interaction; design formulas;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Sasmal, S., Ramanjaneyulu, K., Srinivasm, V., Gopalakrishnan, S. (2004) Simplified Computa- Tional Methodology for Analysis and Studies on Behaviour of Incrementally Launched Continuous Bridges, Structural Engineering and Mechanics, 17(2), pp.245-266.
2 Sasmal, S., Ramanjaneyulu, K. (2006) Transfer Matrix Method for Construction Phase Analysis of Incrementally Launched Prestressed Concrete Bridges, Engineering Structures, 28, pp.1897-1910.   DOI   ScienceOn
3 Renaud, F., Marc, B., Olivier, B., Pierre, L.(1999) Design of a Curved Incrementally Launched Bridge, journal of the International Association for Bridge and Structural Engineering, 9(2), pp.128-132.
4 Rosignoli, M. (1998) Nose-Deck Interaction in Launched Presstressed Concrete Bridge. Bridge Engineering, 3(1), pp.21-27.   DOI   ScienceOn
5 신현묵 (2007) 프리스트레스 콘크리트, 동명사, 서울, pp.456-457.
6 박상현, 김찬녕, 심재수, 이승주, 황의승 (2001) 경제성과 장대경간 구성을 구현할 수 있는 I.L.M교량에 사용되는 추진코의 적정제원 산정에 관한 연구, 가을학술발표회 논문집, 한국콘크리트학회, 2001(01), pp.853-858.
7 김광수 (2008) 파형강판 PSC 박스거더 교량의 설계 및 시공중 안전관리,한국안전학회지, 23(2), pp.87-97.   과학기술학회마을
8 Rosignoli, M. (1999) Presizing of Prestressed Concrete Launched Bridge. ACI Structural Journal, 96(5), pp.705-710.
9 Rosignoli, M. (2000) Thrust and Guide Devices for Launched Bridges, Bridge Engineering, 5(1), pp.75-83.   DOI
10 이환우, 정두회, 안태욱 (2006) 변단면 압출추진코와 ILM 교량 상부단면의 상호작용 해석, 한국전산구조공학회 논문집, 19(2), pp.139-150.   과학기술학회마을
11 이광민 (1992) ILM 공법에 의한 프리스트레스트 콘크리트 박스거더 교량의 설계, 콘크리트학회지, 4(3), pp.19-25.