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Title |
Optimal strengthening in RC Hollow Slab Bridges using μ-GA
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Keywords |
외부 프리스트레싱 ; 최적 보강 ; 마이크로 유전알고리즘 ; RC 중공슬래브교 External prestressing ; Optimal strengthening ; Micro-genetic algorithm ; RC hollow slab bridges |
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Abstract |
In this study, the optimal strengthening by micro genetic algorithm(μ-GA) method is proposed for improvement of load-carrying capacity of RC hollow slab bridges using external prestressing. The Qeen-post type and King-post type are considered for the optimal strengthening. The type for optimal strengthening, deviator, areas of tendons and the number of anchor are calculated by μ-GA. The objective function is constituted with dimensionless cost of tendon and steel for optimal strengthening. The constraints are formulated by design specification for bridges and anchors. The validity of this study is presented by analysis of the results after the optimal strengthening of the RC hollow slab bridge.
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