Design, Modeling and Application of BIM Data Model Based on 3D Collaboration

From the construction process, building construction is a highly professional and complex project. The traditional 2 D(Two-Dimensional) graphic design method is difficult to accurately control the BIM data which seriously restricts the information exchange, schedule control and standardized construction in the architectural design process. In this paper, a data model of building BIM (Building Information Modeling) based on three-dimensional collaboration is constructed by controlling the building structure diagram, working plane design documents, cost estimation and system evaluation, and the personnel composition, expenditure and time consumption of various construction elements of the building are comprehensively compared through this model. The entire experimental protocol was performed in a virtual environment, the traditional architectural design method costs 200,000 yuan in the preliminary design stage, and the three-dimensional collaborative BIM data model costs 100,000 yuan in the preliminary design stage. This scheme is more cost-saving.