A BIM-based collaboration system in design phase of metro projects in turkish aec industry

Thesis Type: Postgraduate

Institution Of The Thesis: Middle East Technical University, Graduate School of Natural and Applied Sciences, Turkey

Approval Date: 2019

Thesis Language: English


Supervisor: Aslı Akçamete Güngör


BIM is a 3D model that contains both geometric and non-geometric information. This comprehensive data enables BIM to be used for many different purposes during various phases of the projects. However, the quality and completeness of the data generated during the design phase are essential for supporting all other uses of BIM. Therefore, it could be considered that the more effectively the design authoring process can be managed, the more favorable it will be for all BIM processes. Nowadays, BIM processes are described in technical specifications of metro projects, which have an important place in infrastructure investments. With the fact that BIM becoming compulsory in these projects, a need for adoption of new approaches for design collaboration arises. Therefore, in this study, a BIM-based design collaboration system is developed for metro projects that are tendered with the Design-Bid-Build delivery method in the Turkish AEC industry. The proposed system covers the main issues related to design collaboration, design automation, and information management. The automation and standardization of these processes constitute the main structure of the system. As a case study, the proposed system is used in a real metro design where design documents are generated for tendering purposes. The data obtained from the case study have been analyzed and compared with another metro project that was previously completed by the same firm, in terms of time, cost, the number of documents produced in the BIM environment, and file sharing process. In this context, the benefits and limitations of the proposed system are identified. According to the results of the study, there is an increase in the number of models generated and the number of documents produced from the models within a comparable amount of time. The study findings demonstrate the advantages of the proposed system and its potential for aiding fully benefit from BIM-based design for the firms in the Turkish AEC industry.