Prefabricated reinforcement cage modular decomposition system and method

The invention discloses a prefabricated reinforcement cage modular decomposition system and method. The system comprises a user input module, a three-dimensional model generating module, a reinforcement cage decomposition module, a suspension centre design module, a bed-jig system generating module and a guidance module. A BIM model with an existing structure and limiting conditions are input and led through the user input module, a corresponding three-dimensional reinforcement skeleton model is generated through the three-dimensional model generating module according to the led BIM module, the three-dimensional reinforcement skeleton model is divided into reinforcement cage modules which meet the limiting conditions through the reinforcement cage decomposition module, the suspension centre of each reinforcement cage module is set and a suspension centre reinforcing scheme is given through the suspension centre design module according to lifting equipment, an arrangement form of a reinforcement cage bed-jig system is generated through the bed-jig system generating module, and a guiding strategy which guides a digital controlled electric welding machine to weld the reinforcement cage modules is generated through the guidance module. According to the prefabricated reinforcement cage modular decomposition system and method, the three-dimensional reinforcement skeleton model is divided into multiple reinforcement cage modules, the construction efficiency is improved, and the construction pollution is reduced.