Influência do BIM na orçamentação: estudo de caso do projeto de instalações hidrossanitárias de uma residência unifamiliar

Abstract

Project failures are the main causes of unpredictability in constructions. From them, incompatibilities arise in the execution and reworks, which leads to budgets inaccuracy and schedule delay. Building Information Modeling (BIM) is a work methodology that aims to optimize processes within the civil construction. This research intends to understand the efficiency of BIM in the cost composition of hydrosanitary installations in a medium-high standard residence. For that, it was necessary to elaborate the 3D models, as well as to analyze the process of compatibility and budgeting within softwares such as Revit®️ and Navisworks®️. The incompatibilities found, such as the incorrect passage of pipes in structural elements, showed the importance of project coordination during the conception phase, as well as the relevance of ensuring the buildability and compatibility of the projects. At the end of the research, the percentage increase in the relevant final cost, showing how much the lack of compatibility and budget detailing can generate unforeseen in planning and cost of constructions. The contribution of this research was due to a more assertive quantification and the large number of corrections made to avoid incompatibilities.