Research on Integration of Digital Graphic and Information in Building Information Modeling

The currently popular Building Information Modeling technology is substantively a dynamic integration system between digital graphics and related information of structure engineering, where information can be updated with change of graphics. The concept, construction method, description standard, basic theory and connotation of digital graphic medium are proposed in this paper, which forms corresponding projection and simulation patterns of the studied engineering object in the natural space and computer space, making the "graphics" become 5 dimensional information carrier with dynamic changing geometric and non-graphic attributes. In engineering structure described by this information system of digital graphics, data can be obtained directly from the graphics and feedback in all stages including the design, analysis, manufacture and installation, which presents the characteristics of big data. This is the advantage of BIM technology, and the reason it is achieving remarkable results in engineering applications.