Contribuições ao estudo da estabilidade global de estruturas de edifícios.

Abstract

This study aims to further deepen the knowledge in analysis of building global stability. Standard geometry of building was adopted, which was subjected into a pre-dimensioning. Structures elements was held with plane frames analysis software, Ftool™ and a space frames analysis software, Eberick™. From this, the coefficients were calculated, verifying if the mobile node is eligible for characterizing the structure. From this definition, it was calculated the initial stability coefficients, then it was sought solutions to ensure that these coefficients presented values within the regulatory limits. Firstly, it was opted for the increase of the sections of columns for stiffness framework. Later, it was studied the framework methodology considering masonry wall, through the method of strut, always attending the limits established by NBR 6118: 2014. It was confronted the obtained results by the analysis of plane frames and space frames, in other to check the efficiency of the simpler model. It was compared the results of stability coefficients considering the contribution of masonry with the initial geometry. Finally, there was prepared an additional analysis under the point of view of material consumption of the applied solutions.