Research on automatic visualization technology of bridge disease information based on BIM

The problems of unintuitive expression of bridge inspection disease information and difficult query of historical disease records are widespread. To solve the above problems, this paper proposes an automatic three-dimensional (3D) visualization expression method of bridge inspection disease information based on BIM (Building Information Modeling) technology. The construction technology of bridge BIM model based on completed drawings is studied. The storage structure of bridge disease information database is designed and the disease information is stored in a time-sharing classification manner. Studying the 3D expression method of common diseases and the conversion relationship model of bridge global coordinates and component local coordinates, the automatic matching and visual expression of disease information and 3D model of bridge are realized. The research results can provide intuitive and visual information query means for bridge maintenance and operation, and help to improve the efficiency of information utilization and rapid formulation of maintenance schemes.