Análise comparativa dos custos entre estruturas de concreto armado e alvenaria estrutural em um edifício residencial: estudo de caso

Abstract

Considering the large number of ongoing construction projects in Brazil, builders, designers, and developers are constantly seeking more efficient and effective construction solutions that allow for reduced timelines and costs, making projects more profitable. In this context, the study presents a comparative analysis between the construction methods of reinforced concrete and masonry, with the aim of identifying the most economical solution for the structure of a multifamily residential building located in Patos-PB. This is a case study based on the architectural design of the building in question, where structural designs were developed using Eberick and QiBuilder software. In addition to developing the designs, the methodology included the collection of material quantities such as steel, concrete, formwork, mortar, partition blocks, and structural blocks, from which the costs for each system were estimated. The results indicate that while the independent reinforced concrete structure incurs higher costs in steel, concrete, and formwork, the masonry structure offers significant savings, especially for projects with characteristics similar to the analyzed property. The cost per square meter of the masonry structure was 20.97% lower than that of reinforced concrete, representing a significant advantage, especially for projects aiming to reduce expenses and optimize execution. The study concludes that the choice of the most appropriate construction system should be based on the specific characteristics of each project, considering both cost and architectural requirements. Masonry is more advantageous for small to medium-sized residential projects, while reinforced concrete delivers better results for larger and more complex constructions.