Análise comparativa entre o orçamento planejado com metodologia BIM e os custos efetivos na construção: Um estudo de caso

Abstract

In the field of civil construction, the intense competition between companies operating in this sector is evident. In this context, entrepreneurs are looking for alternatives to offer more competitive and attractive prices to customers and buyers. This work consisted of a case study whose main objective was to compare a budget prepared with the BIM methodology with the actual costs of a single-family residence developed by a partner engineering and architecture office. For this, the projects of the residence were modeled in the Revit software, allowing the compatibility of the disciplines and the verification of interferences. Then, the Project Breakdown Structure (EAP) was registered in the OrçaBIM plug-in of the OrçaFascio platform, enabling the creation of the 5D budget and the linking of the model to the budget. This approach allowed for a comparative analysis between the budget developed with the BIM workflow and the actual costs of the work, identifying any differences and their possible causes. The study revealed an 8.99% variance between the planned budget and actual costs. This difference indicated the existence of deviations between the estimated values and the actual costs. When analyzing the causes of these divergences, it was identified the incompleteness of the cost control, the inadequate categorization of the inputs, the project changes during the execution of the work, the use of unit costs of the SINAPI bank that diverge from the local prices and the difficulties in the measurement of indirect costs. These factors contributed to the variations found, demonstrating the importance of a more in-depth and accurate analysis in the financial management of construction projects.