Análise comparativa de custos de construção de edifício habitacional de 4 pavimentos em alvenaria estrutural e em concreto armado com alvenaria de vedação

Abstract

The objective of the presented work is to conduct a comparative analysis of the construction costs of a four-story residential building located in the metropolitan region of Curitiba-PR, Brazil. The analysis focuses on comparing the costs of constructing the superstructure and enclosure using the reinforced structural masonry system compared to the conventional reinforced concrete construction system. The structural design in reinforced concrete for the model building is developed based on an existing project in structural masonry, utilizing the structural calculation software AltoQi Eberick. With both construction system models available, quantitative surveys of the superstructure and enclosure are conducted for both systems, along with the preparation of budget compositions. Based on the obtained data, a comparative cost analysis is performed for the two systems, revealing a 40.1% difference in execution costs, with the structural masonry system being the less expensive option. Considering a model residential building in the housing segment, characterized by few architectural arrangements and a low building height, the study concludes that the structural masonry construction system is more advantageous, given the considerable cost difference. This analysis opens the door for further studies on economic feasibility in the execution of similar buildings, benefiting professionals and companies in the construction industry.