Optimal design of steel portal frames based on
genetic algorithms

doi:10.1007/s11709-008-0055-1

Front. Struct. Civ. Eng. ›› 2008, Vol. 2 ›› Issue (4) : 318-322. DOI: 10.1007/s11709-008-0055-1

Optimal design of steel portal frames based on genetic algorithms

CHEN Yue¹, HU Kai²

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Abstract

As for the optimal design of steel portal frames, due to both the complexity of cross selections of beams and columns and the discreteness of design variables, it is difficult to obtain satisfactory results by traditional optimization. Based on a set of constraints of the Technical Specification for Light-weighted Steel Portal Frames of China, a genetic algorithm (GA) optimization program for portal frames, written in MATLAB code, was proposed in this paper. The graph user interface (GUI) is also developed for this optimal program, so that it can be used much more conveniently. Finally, some examples illustrate the effectiveness and efficiency of the genetic-algorithm-based optimal program.

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CHEN Yue, HU Kai. Optimal design of steel portal frames based on genetic algorithms. Front. Struct. Civ. Eng., 2008, 2(4): 318‒322 https://doi.org/10.1007/s11709-008-0055-1

References

1. Hernández S, Fontán A N, Perezzán J C, et al.. Design optimization of steelportal frames. Advances in EngineeringSoftware, 2005, 36(9): 626–633. doi:10.1016/j.advengsoft.2005.03.006
2. Liu P, Chan C M, Wang Z M . Optimal sizing/shape design of steel portal frames usinggenetic algorithms. In: : Proceedings ofthe 2nd International Conference on Advances in Steel Structures. 1999, 1081–1088
3. Prendes Gero M B, García A B, Coz Díaz J J . A modified elitist genetic algorithmapplied to the design optimization of complex steel structures. Journal of Constructional Steel Research, 2005, 61(2): 265–280. doi:10.1016/j.jcsr.2004.07.007
4. Sarma K C, Adeli H . Fuzzy discrete multicriteriacost optimization of steel structure. Journalof Structural Engineering, ASCE, 2000, 126(11): 1339–1347. doi:10.1061/(ASCE)0733-9445(2000)126:11(1339)
5. Ministry of Constructionof China. . Technical Specification for Light-Weighted Steel PortalFrames of China (CECS102:2002). 2002 (in Chinese)
6. Joghataie A, Ghasemi M . Fuzzy multistage optimizationof large-scale trusses. Journal of StructuralEngineering, 2001, 127(11): 1338–1347. doi:10.1061/(ASCE)0733-9445(2001)127:11(1338)
7. Degertekina S O, Sakab M P, Hayalioglua M S . Optimal load and resistance factor design of geometricallynonlinear steel space frames via tabu search and genetic algorithm. Engineering Structures, 2008, 30(1): 197–205. doi:10.1016/j.engstruct.2007.03.014