• Title/Summary/Keyword: 강재 사다리

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기관구역 탈출설비의 내부치수의 합리적 적용에 관한 연구

  • Lee, Jung-Geun;Yu, Jeong-Su
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2013.06a
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    • pp.445-446
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    • 2013
  • SOLAS II-2/13.4에 의해 기관구역에서의 탈출설비는 두 개의 강재 사다리가 요구되는데 하나는 비상탈출 트렁크(Escape Trunk)에 위치해야 한다. 하지만 트렁크의 규정상 내부치수가 사다리 및 비상조명을 포함한 사이즈인지 명확한 해석이 없다. 이 연구에서는 기관구역 탈출설비의 내부치수의 합리적인 적용에 대한 제안을 한다.

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A Study on the New Type Rib of Steel Deck Plates (새로운 형태의 강바닥판 리브에 대한 연구)

  • Chu, Seok Beom;Park, Jong Hae
    • Journal of Korean Society of Steel Construction
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    • v.26 no.6
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    • pp.605-615
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    • 2014
  • The purpose of this study is to propose an economic new type rib by applying plate stiffening methods of the corrugated plate and the honey-comb sandwich panel to the steel deck plate and comparing the new type rib with existing open and closed ribs. The trapezoidal corrugated type, ㄹ type, honey-comb type and ㅁ type ribs are considered as new type ribs and the moment and the steel volume are compared with that of open ribs and closed ribs. The results shows that the honey-comb type and ㅁ type ribs are good in aspects of economic feasibility and the ㅁ type is better than the honey-comb type. To make the ㅁ type rib applicable to the steel deck plate, the sensitivity analysis and parametric study are performed and the system to select the proper section under the particular stress condition is established. The closed rib of real bridges is compared with the ㅁ type rib of the proposed system and it is known that the new type rib is more economic. Therefore, more economic steel deck plates can be achieved by using the system proposed in this study for the plate stiffened with the new ㅁ type rib.