Shape Optimization for Reinforced Concrete Culvert

철근콘크리트 암거의 형상 최적화

  • Kim, Kee-Dae (Dept. of Construction Environmental Engineering, Taegu University)
  • 김기대 (대구대학교 건설환경공학부)
  • Received : 2002.05.22
  • Accepted : 2002.08.20
  • Published : 2002.08.31

Abstract

In this paper, the shape optimization is considered over the upper slab of reinforced concrete culvert. The sequential linear programming method (SLP) is used as a rational approach to this shape optimization. To make a comparison between the arch shaped member and the straight member for the upper slab, the culverts with 5~20m earth height were adopted. It is shown that the optimum rise/span is about 7%-13%, and the arch shaped member is more cheap (over 10%) than the straight member for the construction cost.

Keywords