CHALLENGES OF USING BIM IN LARGE PUBLIC WORKS: A CASE STUDY OF AN EMERGENCY SERVICE UNIT

Abstract

BIM technology is advantageous in several aspects for the civil construction sector, mainly due to the possibility of simultaneous visualization and alteration, including by several disciplines, through the interoperability between BIM software. In Brazil, according to Law No. 14,133 of 2021, public works to be tendered establish that projects are preferably prepared using BIM, in order to provide greater rigor and control over the construction processes involved. Although the use of technology is being used in accordance with the legislation, there are still incipient steps regarding the integrated use of BIM between the disciplines that make up the project and its compatibility, which leads to a disorderly workflow and loss of productivity, making it difficult to processes in the design phase. In this way, this work seeks to analyze the project of a work of the Emergency Service Unit, a large work bid in which the BIM methodology was used. The methodology is based on a case study of the draft and executive project developed by the authors in the year 2022, through outsourcing of modeling by an engineering office. Through the analysis after the end of the design process, it was possible to verify difficulties in coordinating disciplines, design for compatibility and difficulties related to the workflow, caused by the absence of protocols and a BIM Execution Plan. Thus, the design process became onerous both in terms of cost and time. Despite the difficulties, the use of BIM was important to ensure more efficient processes during the development of the project. Thus, this work seeks to discuss the main difficulties encountered by the authors in order to contribute to better design practices and the use of BIM for modeling and compatibility of large works, as well as the importance of BIM for more efficient projects.