Many-objective design of tall buildings considering second order effects

Resumo

This research investigates the application of multi-objective optimization methodologies in the development of economically viable and structurally efficient spatial steel constructions. It emphasizes the significance of optimizing performance alongside cost reduction in practical engineering scenarios. The investigation encompasses the minimization of maximum horizontal displacement, the maximization of the first natural frequency of vibration, the maximization of the critical load factor pertaining to the initial global buckling mode of the structure, and weight minimization as primary objectives. Furthermore, the analysis integrates considerations for both local and global second-order effects. Moreover, it delineates a systematic framework for the selection of optimal designs, employing three distinct evolutionary algorithms grounded in differential evolution, coupled with a multi-criteria decision-making approach.