Multi-objective optimization of one-storey industrial steel buildings according to TCVN 5575:2012

Abstract

Industrial steel structures are preferred in construction due to their cost-effectiveness, rapid construction, and large span capabilities. However, selecting appropriate dimensions for columns and beams is a challenge due to complex design requirements. In this study, we present a multi-objective optimization method aimed at improving the cross-sectional dimensions of industrial steel frames. The goal is to minimize the total weight and the top displacement of the columns while ensuring safety and usability according to the TCVN 5575:2012 standards. The optimization problem is solved using the NSGA-II genetic algorithm, demonstrating high efficiency in achieving the established optimization goals. The results indicate that this method effectively optimizes the design of steel frames.