Análise da influência da inclinação em coberturas metálicas em arco sob ação do vento: estudo de caso no ginásio de esportes Mario Nardi, Renascença - PR

Abstract

Steel structures are widely recognized for their versatility, lightness, constructive efficiency, and mechanical performance, which make them suitable for sports facilities and long-span buildings where the control of deformations and overall stability are crucial for structural safety. This study presents the structural analysis of a steel arch roof designed for the Mário Nardi sports gymnasium, located in the municipality of Renascença, Paraná, with emphasis on evaluating the behavior of the truss under wind action and the variation of its inclination. Steel structures are widely recognized for their versatility, lightness, constructive efficiency, and mechanical performance, which make them suitable for sports facilities and long-span buildings where the control of deformations and overall stability are crucial for structural safety. The relevance of this research lies in the correct design of metallic roofs subjected to significant wind loads, especially in gymnasiums with large unobstructed areas, where excessive displacements may impair structural performance. The methodological approach comprised defining the geometry of the structure, calculating permanent and variable loads, estimating the self-weight of the steel members, obtaining wind actions using Visual Ventos®, and subsequently modeling and analyzing the truss in Ftool®, where loads were applied directly to the nodes to extract axial forces and displacements. The results indicated that the inclination significantly influences both the internal forces and the structural displacements, demonstrating that selecting an appropriate inclination is essential to ensure safety, performance, and efficiency in the design of steel arch roofs.