Análise comparativa entre os métodos de dimensionamento de sapatas rígidas CEB-70, CYPECAD e Bielas e tirantes com o uso da ferramenta Smath Solver.

Abstract

With advances in technology, the use of software in civil engineering has become essential. They provide greater agility, precision and efficiency, increasingly replacing manual methods. In the area of foundations, for example, this is already a reality. When designing an isolated footing, it is possible to use different calculation methods, each with its own premises. These variations can lead to different results, which makes it important to compare them in order to choose the most appropriate solution. In Brazil, the sector faces the challenge of balancing structural performance and cost, amid rising prices and the search for more sustainable solutions. This paper aims to perform a comparative analysis between the known methods for the design of isolated footings. The strut method, proposed by Lebelle (1936), and the CEB-70, developed by the European Concrete Committee in 1970, as well as the CYPECAD software, which is used for different structural calculation methods and is widely used in the dimensioning and analysis of reinforced concrete, steel and wood structures. Furthermore, the study reinforces the importance of understanding the differences between each method, such as the distribution of forces, criteria and assumptions of the structures. The results obtained showed that the CEB-70 method was the most efficient in economic terms, with a total budget 9.88% lower than the other methods. This is due to the lower use of concrete volume, which ends up resulting in greater steel consumption compared to the other methods.