In building design, the designers aim a better and safer project, regarding several structural aspects, besides the reduction of the costs of the inputs. Optimization methods can be used for this purpose without compromising structural safety. Thus, this article aims at the structural optimization by genetic algorithms of reinforced concrete 3D frames. In this study a Genetic Algorithm was developed, containing the specifications for the dimensioning of the structural elements reinforcement. The objective function is formed by the costs of concrete, molds and steel and will be minimized, according to the restrictions of NBR 6118:2014 (Concrete Structures Project - Procedure). The structural model is processed in the Ansys ® software, where discretization occurs through the finite element method, to analyze and obtain the stresses and deformations of the structure. The study consideres design variables: height of beams and columns. The results show that this methodology provided responses consistent when compared to the practice and also surprised with solutions that could be rejected by designers.
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[v1] 2019-07-15 20:00:11
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