Key Technology and Complete-set Equipment for Intelligent Construction of HSR Simply-supported Girder Reinforcement Framework

Abstract: In view of the problems such as backward production mode, poor quality stability, high safety risk and incomplete control system during erection of the reinforcement framework of simply-supported box girders for high-speed railway (HSR), and in combination with the key points and main challenges in the reinforcement framework construction of Guangzhou-Zhanjiang HSR, the overall technical route for the intelligent manufacturing of reinforcement framework of simply-supported box girders is put forward. The component design of reinforcement framework of simplysupported box girder is carried out based on BIM, and the feasibility of the scheme is verified through segment assembly test. The assembly techniques are studied in combination with the mesh design scheme to achieve rapid forming of the reinforcement framework. R&D of automatic processing equipment for components, material transshipment equipment, automatic hoisting equipment and technological equipment for assembly clamping fixture are carried out to realize the overall design of equipment production line. An intelligent control system is developed for the whole-process intelligent construction of reinforcement framework to realize the full life-cycle applications for the workshop production and visual management including intelligent layout and quality traceability. The research results systematically optimize and innovate the assembly and forming technologies of reinforcement framework in the prefabrication beam yard of high-speed railway, realize the component processing, automatic assembly and information technology management, improve the construction quality, efficiency and information technology level of intelligent manufacturing of reinforcement framework of railway prefabricated beam as a whole, and reduce the construction cost of the project. The research has realized a major breakthrough in the construction technology of railway prefabricated box girders, which has the extensive technical and market promotion values.

Keywords: simply-supported box girder; reinforcement framework; intelligent construction; component processing; automatic assembly; information technology management