Abstract:With the continuous development of bridge technology, the form of arch bridge changes daily, which greatly increases the difficulty of the design. Taking the Shenshan Bridge Project as an example, based on the idea of parametric and template design in the deepening design stage, Dassault 3DE platform (2015x) is used to establish a complete set of composite girder arch bridge component library including the main arch, girder, suspender, pier and abutment foundation and deck accessories, and the BIM modeling of the whole line of bridges is completed. Based on BIM model, the design verification is aided. Docking with structural calculation and analysis, the model components are unified and coded, and the component information is extracted. Combined with the digital sand table of GIS, a complete set of digital deliverables is formed, which provides a basis for transferring data in the construction, operation and maintenance stages.