Proceedings of the Computational Structural Engineering Institute Conference (한국전산구조공학회:학술대회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Optimal Design of Steel Box Girders Considering LCC

LCC를 고려한 강박스 거더의 최적설계

  • 안예준 (아주대학교 건설교통공학과) ;
  • 이현섭 (아주대학교 건설교통공학과) ;
  • 신영석 (아주대학교 건설교통공학과) ;
  • 박장호 (아주대학교 건설교통공학과)
  • Published : 2004.10.01
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Abstract

This paper presents a method to minimize Life-Cycle Cost(LCC) of steel box girders. The LCC function considered in this paper includes initial cost, expected life-cycle maintenance cost and repair cost. A resistance force curve is derived from a condition grade curve of steel girders and optimal design of steel box girders is performed on the basis of derived resistance force curve. Also, in this paper annual costs of various case in LCC are compared and analyzed. It is concluded that the optimal design of steel box girders considering LCC by a presented method will lead to more economical and safer girders than conventional design.

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