Forward Design of 3D Modeling of Bridge Complex Surface Based on GIS+BIM

The conventional forward design method for 3D modeling of complex bridge surface reality mainly uses CODSM (Co-Oppsite-Orientation Slicing Method) point cloud slices to generate 3D contours, which is vulnerable to the impact of geometric parameter quantification, resulting in poor performance indicators. Therefore, a forward design method for 3D modeling of complex bridge surface reality based on GIS+BIM is proposed. That is, GIS+BIM is used to design the 3D modeling process of bridge complex surface reality, and generate the 3D modeling engine of bridge complex surface reality, thus completing the forward design of 3D modeling of bridge complex surface reality. The experimental results show that each index of the designed 3D modeling forward design method is good, reliable, and has certain application value, which has made certain contributions to the realization of fine management of bridge construction.