Research on standardization and quantitative extraction of information of ancient building components based on BIM

The standardization and quantitative extraction of component information are accomplished by establishing an information model of ancient buildings. Based on BIM technology, i.e., model visualization, virtual simulation and BIM-related software, this paper combines the dimensional types of components to realize the parameterization settings of components and further designs the information structure of ancient building components. The standardization rate, repetition rate, repeatability coefficient, and standardization coefficient of the components were calculated by quantitative methods, followed by the determination of standardized components and the quantitative extraction of component attribute features based on the BIM model map. Based on the standardization of the information of the five-room, nine-purlin-hipped ancient building members based on BIM, the spatial location of the ancient building members was determined with the following parameters: bucket size 32.5 mm, eaves height 2180 mm, net height 1802.8 mm, and side legs 23.1 mm. BIM application provides a new way of thinking for archiving and protecting ancient architectural data.