Ultrahigh large-span steel structure accurate butt joint method and system based on BIM (Building Information Modeling) technology

The invention discloses an ultrahigh large-span steel structure accurate butt joint method and system based on a BIM technology. The system comprises a foundation model building module, a steel structure skeleton model building module, a steel beam short section model building module, a storage module, an analysis module, a loading module, a task scheduling module, a monitoring module, a configuration module, a positioning module and a remodeling module. According to the method, three-dimensional design software is utilized in a BIM model, a foundation model is used as a basis, a steel structure skeleton model is constructed on the foundation model by utilizing a design drawing of a steel structure and corresponding contour parameters, and meanwhile, steel beam nipple models of different specifications are constructed in the BIM model on the basis of the foundation model on the basis of steel beam nipple finished products of different specifications; by means of the technology, segmented ...