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Structural Engineering and Mechanics
  Volume 29, Number 4, July10 2008 , pages 391-410

Harmony search algorithm for optimum design of steel frame structures: A comparative study with other optimization methods
S. O. Degertekin

    In this article, a harmony search algorithm is presented for optimum design of steel frame structures. Harmony search is a meta-heuristic search method which has been developed recently. It is
based on the analogy between the performance process of natural music and searching for solutions of optimization problems. The design algorithms obtain minimum weight frames by selecting suitable
sections from a standard set of steel sections such as American Institute of Steel Construction (AISC) wide-flange (W) shapes. Stress constraints of AISC Load and Resistance Factor Design (LRFD) and
AISC Allowable Stress Design (ASD) specifications, maximum (lateral displacement) and interstorey drift constraints, and also size constraint for columns were imposed on frames. The results of harmony search
algorithm were compared to those of the other optimization algorithms such as genetic algorithm, optimality criterion and simulated annealing for two planar and two space frame structures taken from the
literature. The comparisons showed that the harmony search algorithm yielded lighter designs for the design examples presented.
Key Words
    optimum design; harmony search; steel frame structures.
S. O. Degertekin: Department of Civil Engineering, Dicle University, 21280, Diyarbakir, Turkey

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