Core Points - The Jinan to Linqing Expressway's key control project, the overpass bridge over the Handan-Ji Railway, successfully completed its high-precision rotation construction, marking a significant milestone in the project [1] - The bridge, designed by China Railway Eryuan Engineering Group and constructed by China Railway Third Bureau, features a 2×85m T-shaped rigid frame and achieved a 59.5° clockwise rotation within one hour [1][4] - The project utilizes advanced technologies such as BIM for multi-disciplinary collaborative design and a high-precision intelligent control system incorporating BeiDou satellite navigation and synchronous automatic traction [4] Technical Achievements - The bridge has a width of 30.8m and a total weight of 30,000 tons, with its alignment on a circular curve with a radius of 4000m [4] - Key processes during construction included precise control of the ball hinge installation, support gap control, synchronous traction stability, and axis deviation correction to ensure structural stress remained within safe limits [4] - The project team successfully achieved millimeter-level precision control during the rotation process, ensuring high engineering quality [4] Strategic Importance - The Jinan to Linqing Expressway serves as a crucial link between G20 Qingyin Expressway and S1 Jiliao Expressway, enhancing the highway network layout in Shandong Province [4] - The completion of this project will strengthen transportation connections between the provincial capital economic circle and the Central Plains urban agglomeration, optimizing regional logistics channels and promoting industrial collaboration in northwest Shandong [4]