Browse > Article
http://dx.doi.org/10.11112/jksmi.2010.14.4.169

Optimal strengthening in RC Hollow Slab Bridges using ${\mu}$-GA  

Choi, Se-Hyu (경북대학교 건축토목공학부)
Park, Kyung-Sik (경북대학교 건축토목공학부)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.14, no.4, 2010 , pp. 169-178 More about this Journal
Abstract
In this study, the optimal strengthening by micro genetic algorithm(${\mu}$-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 ${\mu}$-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.
Keywords
External prestressing; Optimal strengthening; Micro-genetic algorithm; RC hollow slab bridges;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Saadatmanesh, H., Albrecht, P., and Ayyub, B.M., "Guidelines for Flexural Design of Prestressed Composite Beams", Journal of Structural Engineering, ASCE, Vol.115, No.11, 1989c, pp. 2944-2961.   DOI
2 건설교통부, "도로교설계기준", 2005.
3 양동석, 임상훈, 박선규, "외부 긴장된 H형 보의 휨거동 특성", 한국강구조학회논문집, 제14권, 제1호, 2002, pp.79-85.
4 이말숙, 윤영묵, 강문영, "개선소성힌지해석과 유전자 알고리즘을 이용한 반강접 강골조의 이산최적설계", 한국강구조학회 논문집, 제16권, 제2호, 2004, pp.79-85.
5 최동호, 정상환, 유동민, "외부 긴장재로 보강된 강합성보의 내하율 산정식을 이용한 초기 긴장력 결정", 한국강구조학회 논문집, 제17권, 제5호, 2005, pp.527-536.
6 최세휴, "고등해석과 유전자 알고리즘을 이용한 트러스 구조물의 최적설계", 한국구조물진단학회지, 제12권 제4호, 2008, pp. 161-167.
7 한국시설안전기술공단, "교량 내하력 평가 매뉴얼", 2006.
8 한국콘크리트학회, "콘크리트구조설계기준", 2007.
9 Kameshki, E. S., and Saka, M. P., "Genetic algorithm based optimum bracing design of non-swaying tall plane frames", Journal of Constructional Steel Research, Vol.57, No.10, 2001, pp. 1081-1097.   DOI   ScienceOn
10 Pezeshk, S., Camp, C. V., and Chen, D., "Design of Nonlinear Framed Structures Using Genetic Optimization", Journal of Structural Engineering, Vol.126, No.3, 2000, pp.382-388.   DOI   ScienceOn
11 Saadatmanesh, H., Albrecht, P., and Ayyub, B.M., "Analytical Study of Prestressed Composite Beams", Journal of Structural Engineering, ASCE, Vol.115, No.9, 1989a, pp. 2364-2381.   DOI
12 Troitsky, M. S., Zielinski, Z. A., and Nouraeyan, A., "Pre-Tensioned and Post-Tensioned Composite Girders", Journal of Structural Engineering, ASCE, Vol.115, No.12, 1989, pp.3142-3153.   DOI
13 Saadatmanesh, H., Albrecht, P., and Ayyub, B.M., "Experimental Study of Prestressed Composite Beams", Journal of Structural Engineering, ASCE, Vol.115, No.9, 1989b, pp. 2348-2363.   DOI