한국안전학회지 (Journal of the Korean Society of Safety)

  • 제24권5호
  • /
  • Pages.48-56
  • /
  • 2009
  • /
  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
권호 표지

생애주기비용을 고려한 PSC-I형 교량의 최적설계

Optimal Design of PSC-I Girder Bridge Considering Life Cycle Cost

  • 박장호 (아주대학교 공과대학 환경건설교통공학부) ;
  • 신영석 (아주대학교 공과대학 환경건설교통공학부)
  • Park, Jang-Ho (Division of Environmental, Civil and Transportation Engineering, Ajou University) ;
  • Shin, Yung-Seok (Division of Environmental, Civil and Transportation Engineering, Ajou University)
  • 발행 : 2009.10.31
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초록

This paper presents the procedure for the optimal design of a PSC-I girder bridge considering life cycle cost (LCC). The load carrying capacity curves for the concrete deck, PSC-I girder and $\pi$-type pier were derived and used for the estimate of service lives. Total life cycle cost for the service life was calculated as sum of initial cost, damage cost, maintenance cost, repair and rehabilitation cost, user cost, and disposal cost. The advanced First Order Second Moment method was used to estimate the damage cost. The optimization method was applied to the design of PSC-I girder bridge. The objective function was set to the annual cost, which is defined by dividing the total life cycle cost by the service life, and constraints were formulated on the basis of Korean Standards. The optimal design was performed for various service lives and the effects of design factors were investigated.

키워드

참고문헌

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