Análise comparativa da estabilidade global de diferentes concepções estruturais de edificações de concreto armado em função dos materiais utilizados para divisórias internas

Abstract

The analysis of overall stability is one of the main checks to be made in the structures. Considering the growth of high rise buildings, and a consequent search for agility and productivity at the construction site, various possibilities of materials for employees are presented on the market. With regard to internal partitions in residential buildings, drywall is an interesting option, considering its quick executive process and the possibility of changing the layout, offered to the client. Therefore, this work aims to understand what structural differences exist, regarding the quantity and arrangement of elements, and also the global and local displacements, in relation to the axes, depending on the choice of two different possible internal partitions to be used, being one of them the drywall, and the other the masonry of ceramic blocks. As, consequently, these choices demand different structural configurations, this work is concerned with the overall stability of two tall reinforced concrete buildings. For this, initially, pre-dimensioning and subsequent launch of the structures in Eberick were performed, being processed and corrected the errors found. Normative prescriptions for design and acceptable limits of reinforced concrete elements were followed properly. From this, the overall stability was analyzed and the global and local displacements obtained were compared, thus evaluating the influence of the material chosen for the internal partition. With that, it was possible to observe the structures presented different displacements, both globally and locally, being that, in the global context, one of them displaced less in relation to the x axis and the other displaced less in relation to the y axis. In this way it is possible to conclude each configuration behaves more favorably in relation to one of the axes. As for local displacements, the structure composed of a larger number of elements had greater local displacements in both axes, considering their less rigidity. In this sense, it was understood that the differences happen not only due to the quantity and disposition in relation to the axes, but also to the isolated stiffness and location of the elements used in the structure, therefore not being related to the choice of the type of internal partition. [resumo fornecido pelo autor]