Análise comparativa entre projetos de edifícios de concreto armado e alvenaria estrutural com blocos de concreto na cidade de Manaus

Abstract

In a context of increasing demand for more efficient construction solutions, the civil construction sector seeks alternatives that combine structural performance, cost-effectiveness, and process rationalization. Among these alternatives, the choice between reinforced concrete structures and structural masonry systems remains a common uncertainty for designers and developers, especially when both are technically feasible. In this regard, the present study proposes a comparative analysis between these two structural systems, applied to residential multifamily buildings with 4, 8, 12, and 16 floors, focusing on their technical and economic evaluation. To achieve this, complete structural models were developed for both systems using the AltoQi Eberick® and Builder® software, in compliance with current technical standards and maintaining the same architectural layout. The quantities of materials were obtained through the software tools and later used to estimate the costs of each construction stage — foundations, beams and columns, masonry, and slabs — based on the SINAPI database and complemented by consultations with local suppliers in the city of Manaus/AM. The results showed that structural masonry proved to be more economically advantageous, especially in buildings with a higher number of floors, reflecting the system’s efficiency in replacing reinforced concrete elements with load-bearing walls. Thus, the study contributes to more assertive decision-making in structural project development, considering technical feasibility and resource optimization.