AVALIAÇÃO E OTIMIZAÇÃO DE COBERTURAS METÁLICAS DE QUADRAS POLIESPORTIVAS EXECUTADAS COM PERFIS DE AÇO FORMADOS A FRIO

Abstract

The use of cold formed steel profiles (PFF) has grown significantly due to the high strength, low weight and ease in the manufacturing, assembly and production processes. General purpose sheds are one of the types of buildings most benefited from these profiles implementation in civil construction, since they allowed the development of optimized roofs in relation to steel consumption and structural behavior. Despite the development of construction methods and construction technology, it is still possible to observe buildings designed and / or executed in disagreement with normative prescriptions, which results in buildings with various construction pathologies, not to mention buildings that are not designed to exploit their full potential resulting in more expensive buildings with reduced structural capacity. Thus, in this work three coverings of multisport courts performed with PFF were studied in order to evaluate and optimize their structural performance. The evaluation was carried out by means of a numerical computational analysis, and the optimization occurred through the typology modification of the transversal frames and the sections exchange of the roof beams. After applying the methodology, it was noticed that the change in the types of frames promoted the optimization, in relation to the consumption of steel, in two of the three buildings evaluated.