Análise comparativa de orçamentos produzidos a partir de mo- delos construtivos realizados em AUTOCAD e Revit

Abstract

In a construction project, one of the most important steps is the estimation process. The estimate is a key element in the planning process, and also serves as the element of control for a project. Its precision and accuracy are indicators of a project's quality. With the evolution of design methods and processes, with more and more computer tools such as Autocad and Revit, there are also changes in the estimating process. In this sense, the present research aims to conduct a comparative analysis between estimations made from models developed in two different software packages, AutoCAD and Revit, for a standard single-family residence of the Minha Casa, Minha Vida program (PMCMV), located in the city of Vitória, Espírito Santo. Starting from an already developed 2D project, in which it was necessary to update its estimate using data from the Sergipe System of Estimate of Constructions (ORSE) and National System of Prices and Indexes for Civil Construction (SINAPI), to modeling (3D construction) of the residence through Revit and then the estimate was made using the data extracted from this model. After completing the elaboration and updating of both estimates, a comparative analysis of the information provided in each estimate could be performed. Therefore, it was possible to determine that there was a 7% difference between the estimates obtained by the Autocad and Revit models (Revit presented a lower value), thus presenting a cost difference of R$ 3,729.92. Finally, it was possible to conclude by the author that the Revit software proved to be a tool that presents more details and a faster and more accurate way to obtain the necessary data to compose the estimate.