Estudo comparativo entre sistemas estruturais

Abstract

In the present work a comparative analysis was developed between different structural models in reinforced concrete, in order to show the importance of the adopted solutions in relation to the costs of the structures in function of the architecture. The comparative analysis was made between different structural models compatible with a 10-storey building for residential / commercial use, considering spans between 5,00 and 7,5 m pillars, showing the aspect of the functionality of the building foreseeing a better optimization of spaces for the spaces of the vehicles in the pavement of garage, for these types of buildings. Three distinct structural models were adopted for study, each of which varied three types of slabs, massive, precast and trussed. It was analyzed the influence of the requirements of NBR 15.755/2013 - Performance of housing constructions, NBR 15.200/2012 - Design of concrete structures in fire situations and NBR 14.432/2001- Requirements of fire resistance of constructive elements of buildings - in the dimensioning of the structures based on NBR 6118/2014 and in the costs of the structural models adopted. After a literature review addressing the structural systems studied, the materials used in their design and the sizing method, the structures were launched in the Eberick 2018 program, where sizing and analysis were carried out, as well as the results and costs of the structures were obtained. From the analysis of the results, it was possible to conclude that for the structural models adopted, the structures with lattice precast slabs presented as more economical solutions.