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Structural Engineering and Mechanics Volume 47, Number 4, August25 2013 , pages 513-530 DOI: https://doi.org/10.12989/sem.2013.47.4.513 |
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An improved particle swarm optimizer for steel grillage systems |
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Ferhat Erdal, Erkan Doğan and Mehmet Polat Saka
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| Abstract | ||
| In this paper, an improved version of particle swarm optimization based optimum design algorithm (IPSO) is presented for the steel grillage systems. The optimum design problem is formulated considering the provisions of American Institute of Steel Construction concerning Load and Resistance Factor Design. The optimum design algorithm selects the appropriate W-sections for the beams of the grillage system such that the design constraints are satisfied and the grillage weight is the minimum. When an improved version of the technique is extended to be implemented, the related results and convergence performance prove to be better than the simple particle swarm optimization algorithm and some other metaheuristic optimization techniques. The efficiency of different inertia weight parameters of the proposed algorithm is also numerically investigated considering a number of numerical grillage system examples. | ||
| Key Words | ||
| optimum structural design; particle swarm optimization; minimum weight; search technique; combinatorial optimization; grillage systems | ||
| Address | ||
| Ferhat Erdal : Department of Civil Engineering, Akdeniz University, Antalya, Turkey Erkan Doğan : Department of Civil Engineering, Celal Bayar University, Manisa, Turkey Mehmet Polat Saka : Department of Civil Engineering and Architecture, University of Bahrain, Bahrain | ||