Research on the Bill of Quantities Pricing Model for Prefabricated Buildings Based on BIM

Abstract

In recent years, with continuous advancements in prefabricated construction technology and management practices, the accuracy and quality of prefabricated components have improved. As a result, the practice of pre-manufacturing components off-site and assembling them on-site has become an inevitable construction method for the development of the building industry. This paper discusses the current issues faced by prefabricated buildings and analyzes the feasibility of integrating BIM (Building Information Modeling) technology with cost estimation for prefabricated construction.The paper proposes a cost estimation process for prefabricated buildings, which involves adapting BIM’s measurement rules to suit local requirements for concrete quantity calculations. By creating precast (PC) components in BIM software and adding cost-related information, a BIM-based quantity take-off list can be generated.This study provides valuable insights into the application of BIM in the cost management of prefabricated buildings and the further research on quantity take-offs for such projects. It also broadens the scope of BIM applications, offering significant potential for the development and widespread adoption of BIM technology.