عنوان مقاله [English]
Building Information Modeling (BIM) plays a crucial role in managers' decision-making processes, as it has been proven to increase productivity, reduce costs, and improve the quality of construction projects. However, BIM implementation faces barriers in Iran and other parts of the world due to its novelty. This paper aims to analyze and identify these barriers in the Iranian AEC industry. A literature review identified 27 international barriers, which were categorized into four categories: Organizational/Cultural, Contractual, Legal, and Technical. Case studies of 28 private companies, including owners, consultants, and contractors, were conducted to identify 17 barriers to BIM implementation in Iran. Data was collected through document reviews, participation in meetings, semi-structured interviews, and direct observation, and then analyzed using N-Vivo. The barriers identified in the Iranian market had similarities and differences from those summarized in the literature review. Similar barriers included a lack of top management support, resistance to change, unwillingness to share data, lack of efficient workflows, lack of standard contractual frameworks, lack of interoperability of software, technical limitations in BIM software, lack of parametric objects library, and time and expenditure of model development. Seven new barriers were identified, including failure to complete tasks by other professional task groups, high salary expectations of BIM professionals, non-compliance with BIM Execution Plans (BEP), low value of incentives/penalties, difficulty in measuring work progress in BIM services, lack of efficient Common Data Environments (CDE), and internet connectivity issues. The identification and categorization of barriers is an essential step toward removing them and improving the implementation of BIM in projects.