Análise teórica e experimental de estacas submetidas a carga direta de pilares.

Abstract

Nowadays, we see that the draftsmen have dispensed the use of foundation blocks between foundations and pillars when they use just one pile to lift one single pillar at the project. Because of that, the behavior of the pile when it receives this charge is little known and studied. It’s known that when the charging happens in a small area, tensions of the transverse traction to the pile and to the pillar axis will be generated while the tensions of the compression spreads through the pile and this traction effort will be possibly bigger than the resistance to the concrete’s traction, leading to a rupture of the pile for cracking, that is a lengthwise crack at the pile. Therefore, a freightage armor should be dimensioned to support these efforts and keep safe the structural function of the pile. This work makes a theoretical approach of the object, trying to embrace theories of very similar models, to make possible that an experimental analysis proves or not the effectiveness of these similar models to the case studied, trying to improve the concepts about freightage armor and cracking. It can be said that changes at the calculation models used in this research are necessary to dimension the transverse strength of traction generated by the charging in a small area, and also that the different freightage armor studied makes a little difference at the resistant capacity of the pile prototype.