Comparação entre modelos de análise estrutural nos resultados relativos ao coeficiente 𝛾𝑧 e aos deslocamentos horizontais de serviço

Abstract

The present work presents a comparison between the spatial portico method applied in the Eberick software and the associated portico method applied in the Ftool software to find the 𝛾𝑧 coefficient and the horizontal service displacements in reinforced concrete structures. Comparisons are made in structures with 4, 8, 12, 16 and 20 floors for two different architectural projects. The structures are dimensioned in the Eberick software and extracted the reports of global stability and horizontal displacements, the diagnosis of the structure and the dimensions of the columns. The data for modeling the associated frames is calculated using an electronic spreadsheet. The analysis of results is carried out in order to compare all the parameters calculated through each method in order to conclude in which type of structure it is necessary to use a more complex analysis model to design more efficiently. The results showed that the method of the associated frames points higher values for the horizontal displacements of service, increasing the variation between the methods in more slender structures. As for the 𝛾𝑧 coefficient, the variation in results between the methods was greater in more slender structures due to the much higher horizontal displacements measured in the associated frame method.