Techno Press
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Structural Engineering and Mechanics   Volume 51, Number 3, August10 2014, pages 361-375
Optimum design of axially symmetric cylindrical reinforced concrete walls
Gebrail Bekdaş

Abstract     [Full Text]
    The main aim of this paper is to investigate the relationship between thickness and height of the axially symmetric cylindrical reinforced concrete (RC) walls by the help of a meta-heuristic optimization procedure. The material cost of the wall which includes concrete, reinforcement and formwork, was chosen as objective function of the optimization problem. The wall thickness, compressive strength of concrete and diameter of reinforcement bars were defined as design variables and tank volume, radius and height of the wall, loading condition and unit cost of material were defined as design constants. Numerical analyses of the wall were conducted by using superposition method (SPM) considering ACI 318-Building code requirements for structural concrete. The optimum wall thickness-height relationship was investigated under three main cases related with compressive strength of concrete and density of the stored liquid. According to the results, the proposed method is effective on finding the optimum design with minimum cost.
Key Words
    aially symmetric cylindrical reinforced concrete walls; optimization; harmony search; optimum cost; optimum design
Gebrail Bekdaş : Department of Civil Engineering, Istanbul University, 34320 Avcilar, Istanbul, Turkey

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