Steel box girder cable-stayed bridge construction control system and method based on Midas and BIM model

The invention discloses a steel box girder cable-stayed bridge construction control system based on Midas and BIM models, and the system comprises a steel box girder manufacturing information actual measurement module which is used for obtaining steel box girder machining data; the finite element linetype analysis module is used for obtaining bridge theoretical calculation linetype data; the steel box girder linetype actual measurement module is used for obtaining construction deformation data of an installed girder section; the preprocessing module is used for preprocessing the obtained data in combination with theoretical data exported by a bridge Midas model and fitting key parameters of control points required by the BIM model; the database is used for storing data after the key parameters of the control points required by the BIM model are fitted; the data identification module is used for screening the key data in the database; and the BIM model data module is used for calling the screened data and comp