Design Strength of Bridges against Ship Collision according to Vessel Traffic

선박통행량에 따른 교량의 선박충돌 설계강도

  • 이성로 (목포대학교 건축조경토목공학부 토목공학) ;
  • 이병화 (목포대학교 대학원 토목공학과) ;
  • 강성수 (목포대학교 대학원 토목공학과)
  • Published : 2004.11.01

Abstract

An analysis of the annual frequency of collapse(AF) is performed for each bridge pier exposed to ship collision. AF is computed for each bridge component and vessel classification. The summation of AFs computed over all of the vessel classification intervals for a specific component should equal the annual frequency of collapse of the component. The designer should use judgment in developing a distribution of the vessel frequency data based on discrete groupings or categories of vessel size by DWT. In the present study the effect of vessel classification on the annual frequency of collapse in the ship collision risk assessment is investigated by illustrative numerical examples based on the vessel frequency data of the domestic harbor. The DWT interval for larger vessels has more effect on the ship collision risk. Therefore the expert judgement in determining the larger DWT interval is required because the design impact lateral resistances of bridge components depend on the ship collision risk.

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