Comparação de custos diretos de duas estruturas de concreto armado e protendido para uma edificação residencial de quatro pavimentos

Abstract

The growing aesthetic demands imposed by architectural projects increasingly challenge the calculating engineer in single-family property calculations. For the reason presented, professionals are being encouraged to seek solutions in constructive method options, which are not popular in most of the Brazilian territory, in order to present viable solutions. Given this fact, it is believed that prestressed concrete can be the solution for the construction of this residence, combining the main advantages of this construction method such as: ability to support large spans, large savings in steel and wood and increased productivity. Therefore, this work aims to present a comparison of direct costs between the construction methods reinforced concrete with solid slab and prestressed concrete with flat slab. Two structural projects of each construction method were elaborated using the TQS software Full version of a property with four floors. From this, a quantitative survey of the structural elements was carried out and, subsequently, their direct costs, using the compositions of the SINAPI of January 2022 in the state of Tocantins. After analysis, it was concluded that the construction system in prestressed concrete with flat slab presented greater effectiveness for the execution of the single-family residence presented, reducing costs by 6.22%.