Análise comparativa entre metodologias de estimativa da capacidade de carga à tração para fundações

Abstract

In most engineering projects, foundations are primarily subjected to compressive strength. In certain infrastructures, such as wind turbines, transmission towers, and oil platforms, require additional verification to tensile strength of foundations. For these verifications, there are various methodologies in the literature for estimating the tensile load capacity of foundations. Since the tensile hypothesis can be the most critical for design, it is essential to choose a methodology that aligns with the specific project conditions. To assess the differences among these methodologies, this study conducted a comparative analysis of the tensile load capacity results obtained from the Grenoble, Meyerhof and Adams, The Soil Cone, and Balla methods for a spread footing foundation. The soil parameters were based on a reference boring test using correlations with the NSPT as proposed in the literature. As expected, the results varied for each methodology. These differences are understood to stem from the assumptions and specific considerations of each method.