Abstract
A new methodology for the performance-based optimum design of steel structures subjected to seismic loading considering inelastic behavior is proposed. The importance of considering life-cycle cost as an additional objective to the initial structural cost objective function in the context of multiobjective optimization is also investigated. Life-cycle cost is considered to take into account during the design phase the impact of future earthquakes. For the solution of the multiobjective optimization problem, Evolutionary Algorithms and in particular an algorithm based on Evolution Strategies, specifically tailored to meet the characteristics of the problem at hand, are implemented. The constraints of the optimization problem are based on the provisions of European design codes, while additional constraints are imposed by means of pushover analysis to control the load and deformation capacity of the structure.
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Fragiadakis, M., Lagaros, N. & Papadrakakis, M. Performance-based multiobjective optimum design of steel structures considering life-cycle cost. Struct Multidisc Optim 32, 1–11 (2006). https://doi.org/10.1007/s00158-006-0009-y
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DOI: https://doi.org/10.1007/s00158-006-0009-y