Research and application of BIM forward design technology for bridge pile foundation structure

At present, BIM forward design is mostly used in steel beams, main towers, steel anchor beams and other structures, but the BIM forward design of steel reinforcement structures has not yet been involved. Therefore, the basic structure of Huangmaohai Bridge is taken as the research object, and the BIM parameterized forward design based on pile foundation, cap and tower reinforcement is studied. A parametric BIM model library incorporating design associated parameters was created, a BIM platform based configuration system was built for size lines, marking symbols, colors, line widts, maps, fonts and views, etc. The method of drawing annotation, layout adjustment and engineering quantity statistics was introduced in detail, and the two-dimensional drawing delivery results were finally formed. The successful application of BIM forward design in Huangmaohai Bridge foundation provides a good reference for other related research and application.