ESTIMATIVA DE RECALQUES EM ESTACAS CONSIDERANDO A INTERAÇÃO SOLO-ESTRUTURA

Abstract

This work describes the creation of a program, using Aoki & Lopes (1975) method, with Mindlin's equations (1936) and Steinbrenner's simplification (1934) for calculating settlements in stratified media taking into account the effects of soil-structure interaction. The software developed allows the calculation of the piles reported on the SPT probe profile. The programming language used was Visual Basic .NET. The calculation of the recharge estimate was done using the Aoki-Lopes method and takes into account the effect of the piles group. The calculation method divides the loads acting between the stem and the tip, obtained through the Aoki-Velloso method. In order to validate the calculations obtained, data were used for the measurements of settlements of the Residential Building Maria Carolina Montenegro, located in Recife - PE. The calculations provided by the program, together with the Eberick structural analysis tool, were consistent and presented a mean very close to the average of the in loco settlements measurements, with a relative difference ranging from -4.32% to -4.56% . The uniformity of the loads and loads was evident with the amplitude of variation of the vertical loads in the foundation between -6.12% and 12.43%. Even with the load acting on the structure being less than the project, the measured settlement was higher than that obtained by the load test. In this way, the unpredictability of soil behavior when subjected to stress is evident.