The Research of BIM in the Design Stage of Precast Concrete Structures

This paper presents a study on the application of BIM (Building Information Modeling) technology based on CDM (Component Data Model) theory in the design stage of precast concrete structures from three aspects of standard formulation, designing by filling numbers and software development, which is used to solve the problem that IFCIndustry Foundation Classes) cannot be implemented in the traditional mode. BIM technology, with its advantages of visualization, parameterization and integration, is widely used in the full life-cycle of prefabricated buildings. Initially, this paper analyzes the disadvantages of traditional BIM technology based on IFC format, such as the defect in developing IFC plug-ins and low data interaction efficiency for the lost of a large amount of data in the model. Then the process of BIM technology based on CDM theory is introduced for the design stage of precast concrete structures and from the comparative analysis of CDM theory and IFC theory, we can find that CDM theory can break the data island in the process of project design and improve the efficiency of data interaction among each BIM software. Finally, the feasibility of the proposed technical route is verified by a practical prefabricated engineering case, and this method can be universally applied to the full life-cycle management of the project construction.