Metaheuristic optimization of building structures with different level of safety

A methodology for solving the optimal synthesis problems of bearing and enclosing structures is proposed, including for steel frames, column reinforced concrete foundations, heat-transmission shell using genetic iterative diagrams and triangulation procedures. The approaches to finding solutions for buildings of normal and increased levels of responsibility are considered. A three-stage diagram is proposed that includes, at the first stage, the synthesis of the topology of the steel frame, at the second stage, the optimization of its shape and parameters of the rods, and at the third stage, the consideration of possible emergency situations. For buildings with a normal level of responsibility in the particular case, the use of the first two stages is allowed. The structure of the frames is synthesized by using the algorithm of plane triangulation of a set of points, which are meant as structural joints. The design parameters are selected using an improved genetic algorithm adapted for solving problems of this type. An example of the synthesis of the building structure of a weighted vehicle is considered, illustrating the performance and high efficiency of the approach under consideration.