Análise das fundações de um galpão industrial em estacas strauss: estudo de caso

Abstract

This work reports on the monitoring of the execution of the foundations of an industrial warehouse, built with precast structure, located in the city of Guarapuava - PR. Based on the geotechnical characteristics of the terrain, the construction company opted for the use of Strauss piles. To carry out this work, a structural model of a precast building was developed, and the necessary project loads were obtained. From the interpretation of Standard Penetration Test (SPT) drilling reports, reading of the building's floor plan, where it was possible to identify the location of foundation holes, on-site monitoring to measure the actual depth of the piles, data was obtained for calculating the load-bearing capacity of the foundations using semi-empirical methods: Aoki-Veloso (1975) and Décourt-Quaresma (1978). Subsequently, the project values were compared with the values obtained by the semi-empirical methods. The evaluation of the two semi-empirical methods, Aoki-Velloso and Décourt-Quaresma, revealed that both present average values higher than the simplified calculations of the industrial warehouse project, resulting in safety factors of 2.07 and 2.39, respectively. These results indicate an adequate safety margin, meeting the minimum requirement of 2 for the overall safety factor. The observation that both methods surpass the simplified calculations emphasizes the importance of choosing more detailed and specific analysis methods to ensure an accurate assessment of the structural safety of the project.