Monitoramento de recalques de edifícios e avaliação da interação solo-estrutura.

Abstract

The settlements measurement in buildings is becoming an even more common practice at Brazilian's civil construction scenery. Through this measurement is possible to verify the foundation's global performance, allowing this way, the analysis of the whole soil-structure interaction. It's importance has been recognized and recommended by the NBR - 6122/1996 (foundation's project and execution rules). It's common practice in building's projects not to consider the effect of this interaction, although many studies have showed its importance, as the differentials settlements reduction, the redistribution of loading on the structure, and the larger influence of the firsts floors in the settlements standardization. The settlements measurement and the analysis of the soil-structure interaction make possible, among other advantages, to supply foundations that would not be possible in a conventional analysis, propitiating this way a decrease in the building execution cost. This work presents a study about the soil-structure interaction through settlements measurement of three buildings situated in the coast of Joao Pessoa city, which were controlled since the beginning of the construction. The main points analyzed were: the evolution of settlements in the time and the soilstructure interaction. It's was also realized a comparison, between the settlements obtained through the measurement with the ones calculated through traditional methods of settlement prevision. The studies presented satisfactory results, which contributed to solidify the importance and value gave to the settlements measurement and to the analysis of the soil-structure interaction, like building's technological control and the mechanism of damage and structural accidents prevision.