Orçamentação em BIM: impactos da modelagem em seu processo

Abstract

The construction industry, during economic changes, needs to optimize its investments more and more, which for Project Management means the best balance between quality, cost and time. Since the quality of the project is guaranteed by legal guarantees, cost and time must be carefully studied together with the planned scope. It is important to be able to simulate construction alternatives without impacting on the contracted result. Cost engineering is the area responsible for these analyses and has sought to improve its processes and tools, which are still dependent on manual activities, to increase their efficiency. One of the possible advantages of the BIM methodology for this process is the direct interface between the parameterized model of the project and lists of quantities of the modeled elements needed to carry out the work or even the cost bases, speeding up these simulations. This study presents an approach to verifying the suitability of the models and the respective information exchanged for direct use of this documentation by the cost professional. Its general objective is to map the inconsistencies detected in the application of the BIM methodology in the budgeting process and to propose a flow of analysis and auditing of the model to help mitigate the problems, enabling the cost professional to act independently. A literature review was carried out to provide a basis for the concepts, a survey of modeling flaws and possible quality indicators. The proposal presented was validated by applying it to an architectural model of a hospital building. The study concludes that it is important to delve deeper into the BIM methodology, broadening the holistic vision already inherent in the cost professional.