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Smart Structures and Systems
  Volume 20, Number 5, November 2017 , pages 607-618

Design of multi-span steel box girder using lion pride optimization algorithm
A. Kaveh and S. Mahjoubi

    In this research, a newly developed nature-inspired optimization method, the Lion Pride Optimization algorithm (LPOA), is utilized for optimal design of composite steel box girder bridges. A composite box girder bridge is one of the common types of bridges used for medium spans due to their economic, aesthetic, and structural benefits. The aim of the present optimization procedure is to provide a feasible set of design variables in order to minimize the weight of the steel trapezoidal box girders. The solution space is delimited by different types of design constraints specified by the American Association of State Highway and Transportation Officials. Additionally, the optimal solution obtained by LPOA is compared to the results of other well-established meta-heuristic algorithms, namely Gray Wolf Optimization (GWO), Ant Lion Optimizer (ALO) and the results of former researches. By this comparison the capability of the LPOA in optimal design of composite steel box girder bridges is demonstrated.
Key Words
    composite box girder; optimal design; lion pride optimization algorithm; constrained problems; meta-heuristic search
A. Kaveh and S. Mahjoubi: Centre of Excellence for Fundamental Studies in Structural Engineering, Iran University of Science and Technology, Narmak,
Tehran, P.O. Box 16846-13114, Iran

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