Avaliação das metodologias de previsão de capacidade de carga em sapatas submetidas à tração.

Abstract

The shallow foundation submitted to tensile stresses are elements present in several types of buildings, this area of foundations engineering was little explored, so it is justifiable to approach the theme. The usual methodologies for calculating the load capacity of surface tensile foundations are: The soil Cone Method, Friction Cylinder Method, Balla Method, Method of Meyerhof and Adams. In this work a comparative analysis of the results of the load capacity obtained through these methods is made for foundations seated at 30,45 and 60 cm depth and with diameters of 30 and 45 cm, with the values of the tests of actual loads tested by Ruver (2011). It is concluded, that for these foundations in the studied soil conditions the method that was most efficient was that of Meyerhor and Adams. The method that presented results farthest from the actual load capacity value was the cone trunk method for the situation where α is equal to that observed in the load tests.