Análise técnico-econômica de diferentes configurações de coberturas para galpões industriais

Abstract

The use of steel structures in the civil construction industry represents an important construction method that stimulates the economy, integrating different industrial and commercial sectors in the implementation of steel-framed buildings. Furthermore, operational parameters such as the prefabrication of elements, speed of construction, and reduced need for labor, as well as sustainable parameters like lower waste generation and the possibility of material recycling, characterize steel as a highly advantageous material for various building types. Given the above, this study aimed to analyze two different roof configurations in a building model where steel is widely prominent as a construction material: industrial warehouses. The analyzed and compared cases consist of 6 (six) combinations of portal frames in warehouses, formed by 2 (two) structural roof configurations (trussed and rolled steel beam) and 3 (three) widely commercialized span dimensions (20, 25, and 30 meters). The structural roof configurations and span dimensions were carefully chosen due to their widespread use in the market. Through the development of this work and the study of the proposed cases, it was identified that the trussed roof structure outperformed the other configuration in each of the proposed spans, i.e., 20, 25, and 30 meters, considering the criteria of structural weight efficiency and the amount of steel used. The parameters analyzed to determine the highest efficiency were: steel ratio (kg/m²), total quantity of steel used, and total weight of the structure (kg).