BIM Component Library for Subway Public Works

Abstract

The aim of this paper is to discuss and propose solutions for the introduction of BIM component library in the Brazilian context of contracting public works. Currently, public companies contract engineering and construction services through a bidding process, which seeks to ensure the most advantageous proposal for the government and to avoid overpricing in operations. However, transparency and active public accountability are still poorly used, creating misinformation and opportunities to misuse public resources. In light of this context, some public initiatives of BIM (Building Information Modeling) adoption for public construction aim to increase the quality of projects and budgets, resulting in greater transparency and information flow control. The present work focuses on the contracting process of “Companhia do Metropolitano de São Paulo - CMSP”, the São Paulo state subway company, which are usually made under a semi-integrated regime. It is necessary that the CMSP develop or contract a called basic project. From this project a reference budget is calculated and used as a basis for the request for proposal value. In order to increase the speed of the contracting process and provide a better project development, it is proposed a BIM component library, which includes complete modules of subway station. Subway station designs have a high number of standardized solutions, which is closer to manufacturing processes. The research seeks to combine the BIM methodology with the construction standardization process, providing elements to assist the development and control of the subway works.