Analysis of Railway Bridge Girder Installation and Construction Technology--Based on BIM Technology

The emergence of BIM technology has caused changes in the field of construction, which is of great significance to improving the construction technology and management level of roads and bridges. In this paper, the overall framework of the railroad bridge BIM model is constructed by utilizing several BIM software to display its corresponding geometric construction information and line information. Based on the relevant information, construction simulation technology is combined with BIM technology to propose a lean management model for a railroad bridge construction site. Specifically, it first checks the mechanical properties of the bridge plate to ensure the safety of its installation, and then optimizes the progress of the construction phase under the constraints of the construction site, realizes the deviation warning, and ensures the optimal completion of the construction project. The results show that the paving layer connection structure has an optimal load transfer effect in the range of 0-502kN. However, cracking at the critical point of the pressure plate can result in plastic deformation before. At the same time, the vibration of the abutment plays an important role in the safety of the overall bridge structure, and the abutment height of the bridge should be controlled within 40M. By optimizing the construction schedule of beams and slabs, the contract period can be shortened by up to 19 days, and the expected cost can be reduced by 760,000 yuan. The research results accumulate methods for applying BIM technology in the installation and construction stages of railway bridge beams and slabs.