Pre-assembly method, device and equipment for steel structure close to existing line and storage medium

The invention relates to a pre-assembly method, device and equipment for a steel structure close to an existing line and a storage medium, and belongs to the technical field of steel structure pre-assembly. The method comprises the steps that installation scene information close to the existing line is obtained based on the three-dimensional scanning technology; engineering drawing information is obtained, the engineering drawing information comprises information of multiple components and installation information of all the components, and the installation information comprises preset installation positions and preset installation paths of the components; establishing an installation environment point cloud model corresponding to the installation scene information based on BIM; establishing a component model based on the component information; in the installation environment point cloud model, according to the preset installation path, installing each component model to a preset installation position in a si