Optimum Design of Trusses Using Genetic Algorithms

유전자 알고리즘을 이용한 트러스의 최적설계

  • 김봉익 (경상대학교 토목ㆍ환경공학부) ;
  • 권중현 (경상대학교 토목ㆍ환경공학부)
  • Published : 2003.12.01


Optimum design of most structural system requires that design variables are regarded as discrete quantities. This paper presents the use of Genetic Algorithm for determining the optimum design for truss with discrete variables. Genetic Algorithm are know as heuristic search algorithms, and are effective global search methods for discrete optimization. In this paper, Elitism and the method of conferring penalty parameters in the design variables, in order to achieve improved fitness in the reproduction process, is used in the Genetic Algorithm. A 10-Bar plane truss and a 25-Bar space truss are used for discrete optimization. These structures are designed for stress and displacement constraints, but buckling is not considered. In particular, we obtain continuous solution using Genetic Algorithms for a 10-bar truss, compared with other results. The effectiveness of Genetic Algorithms for global optimization is demonstrated through two truss examples.


  1. Adaptation in Natural and Artificial system Holland,J.H.
  2. Engineering Optimization v.9 a improved Templeman's Algorithm for Optimum Desgn of Trusses with Discrete Member Sizes Zhu,D.M.
  3. Journal of the Structural Engineering v.123 no.3 Standardization of Steel Pole Design Using Discrete Optimization Kocer,F.Y.;Arora,J.S.
  4. Journal of Structural Engineering v.123 no.5 Optimal Design of Trusses Using Available Sections Yavada,R.S.S.;Gurujee,C.S.
  5. Computer & structures v.56 no.6 Steady-state Genetic Algorithm for Discrete Optimization of Trusses Wu,S.J.;Chow,P.T.
  6. 한국해양공학회지 v.16 no.4 유전자 알고리즘을 이용한 뼈대구조물의 이산최적화 김봉익;권중현
  7. 한국해양공학회지 v.19 no.I-6 규격부재를 사용한 뼈대구조물의 이산최적화 김봉익
  8. Structural Optimization v.5 An Optimality Criteria Algorithms for Tall Steel Building Design using Commercial Standard Sections Chan,C.M.
  9. Journal of the Structural Engineering v.118 no.5 discrete Optimization of Structures Using Genetic algorithm Rajeev,S.;Krishnamoorthy,C.S.
  10. Journal of the Structural Engineering v.118 no.11 Plane Frame Optimum Design Environment Based on Genetic Algorithm Jenkins,W.M.
  11. Optimization and Machine Learning Genetic Algorithms in Search Goldberg,E.