재해석 기법을 이용한 강상자형교의 최적설계 = Optimization of Steel Box Girder Bridges using Approximate Reanalysis Technique

다국어 초록 (Multilingual Abstract)

Structural optimization algorithm of steel box girder bridges using improved higher-order approximate reanalysis technique is proposed in this paper. The proposed approximation method is a generalization of the convex approximation method. The order of the approximate reanalysis for each function is analytically adjusted in the optimization process. This self-adjusted capability makes the approximate structural analysis values conservative enough to maintain the optimum design point of the approximate problem. The efficiency of proposed optimazation algorithm, compared with conventional algorithm, is successfully demonstrated in the steel box girder bridges. The efficiency and robustness of proposed algorithm is also demonstrated in practical steel box girder bridges.

참고문헌 (Reference)

1 대한토목학회, "도로교 설계기준"

2 Fluery, C, "Structural optimization: a new dual method using mixed variable" 23 : 409-428, 1986

3 Schmit, L, "Some approximation concepts for structural synthesis" 12 (12): 629-699, 1974

4 Chung, T, "Self-adjusted convex approximation method for structural optimization" 79 : 665-672, 2001

5 Storaasli, O, "On the accuracy of the Taylor approximation for structure resizing" 1 : 231-233, 1974

6 Vanderplaats, G, "ADS:A FORTRAN Program for Automated Design Synthesis. Engineering Design Optimization" Santa Barbara 71-151, 1985