Análise comparativa dos parâmetros de estabilidade global entre um edifício de alvenaria estrutural e de concreto armado na Cidade de Palmas/TO

Abstract

An analysis of the overall stability in reinforced concrete buildings, as well as structural masonry is carried out following the standards recommended by ABNT NBR 6118 (2014). The parameters that are usually analyzed are the instability parameters Alpha (α) and Gamma-z. These parameters aim to compare the rigidity of the building's construction systems. In addition to these standardized standards, there is also the P-Delta process, where it is used in most modern programs. This work has as general objective to carry out a comparative analysis of the parameters of global stability between a building of structural masonry pavements of concrete blocks and a reinforced concrete building located in the city of Palmas in the state of Tocantins. For this, a bibliographic review was made based on the Brazilian standards ABNT NBR 6120 (2019) and ABNT NBR 6123 (1988) for loading tests, stock actions and data statistics. Calculation steps were also carried out for the acquisition of loads of type and roofing pavements. The study in question does not include the use of complex calculation programs, the use is limited to spreadsheets in Excel, since these programs may not be available to structural calculation engineers. This work concluded that the structural masonry buildings have a lower global stability value when compared to reinforced concrete, this is due to a low low value of the Z coefficient range in the two axes analyzed and a smaller number of interactions P-Delta.