Review of Cost Control Research in Prefabricated Construction under EPC Mode

Aims: Amidst the accelerating global urbanization and growing demand for sustainable development, prefabricated construction emerges as a pivotal transformational force in the construction industry due to its efficiency and environmental friendliness. This paper comprehensively reviews cost control research in prefabricated construction under the EPC (Engineering, Procurement, Construction) model. Study Design:  The study adopts a literature-based approach, incorporating findings from domestic and international scholars, to uncover the critical issues and challenges in cost control within the EPC framework. Additionally, it analyzes the application of technological innovations such as BIM (Building Information Modeling) and DEMATEL (Decision Making Trial and Evaluation Laboratory) in cost control, offering a theoretical foundation and practical guidance for prefabricated construction under EPC. Place and Duration of Study: The research spans various regions globally, examining recent practices and theoretical advancements in cost control for prefabricated construction projects under EPC over the past decade to ensure timeliness and comprehensiveness. Methodology: The methodology encompasses a systematic literature review to construct a theoretical framework, coupled with an analysis of case studies showcasing effective cost control measures. Furthermore, the study explores the utilization of BIM and DEMATEL to enhance cost prediction accuracy, process monitoring, and decision-making support. Results: The findings reveal that the EPC model facilitates more systematic and efficient cost control in prefabricated construction. The application of BIM significantly improves cost forecasting precision and process transparency, enabling timely cost deviation identification and correction. DEMATEL effectively identifies key cost drivers and their interrelationships, informing targeted cost control strategies. Conclusion: This paper underscores the significance of cost control in prefabricated construction under the EPC model and highlights the pivotal role of BIM and DEMATEL in enhancing cost control effectiveness. It concludes by advocating for deeper integration of prefabricated construction with the EPC model to propel the green, intelligent transformation and sustainable development of the construction industry.