Análise comparativa do custo entre concreto armado e concreto protendido em lajes e vigas em um edifício multifamiliar.

Abstract

With the constant evolution of technologies, civil construction has had the opportunity to improve its construction methods, bringing a range of advances in all its areas, linking cost-effectiveness, to meet the demands present in the market. An important and indispensable tool in this process is the budget, which helps cost engineering in the planning of a work or service, through cost forecasting, also being present in the evaluation of construction systems, for a better choice within the existing possibilities. The study in question aimed to make a budget analysis, comparing the construction system of Reinforced Concrete, with that of Prestressed Concrete, applied on beams slabs, in a multifamily building, to understand the economic viability of each one. For the aid of this analysis, a unitary composition of the services of the elements in question was assembled, using the SINAPI database, from Caixa Econômica Federal as a reference, using the data for the month of June/2022. After generating this form, the quantitative data necessary for their execution were extracted from the structural projects of each system, and, in this way, two budgets could be generated, containing the final price. The construction system in Prestressed Concrete proved to be 13.05% more economical than the construction system in Reinforced Concrete, leading to the conclusion that it is a technique to be considered for projects in the field of civil construction.