On August 3, 2022, the main pier T3 of Xiangyang North Marshalling Station Bridge, the speed-increasing control project undertaken by China Railway 11th Bureau, was successfully rotated at a height of 73 meters, marking that the bridge entered the stage of steel-concrete composite beam suspension. , the project is expected to be completed in June 2023.
The main bridge of Xiangyang North Marshaling Station Bridge is 920 meters long and 37.5 meters wide. It adopts a double-single tower and double-cable plane mixed beam cable-stayed structure, spanning a total of 32 railway lines. The bridge that spans the most railroad tracks. In order to reduce the impact of bridge construction on the railway, the two main towers adopt the construction method of "partial swivel + part of the suspension", that is, first assemble and construct in the direction parallel to the Handan and Jiaoliu railways, and then use the railway to run the "skylight point". "Do the swivel docking.
In the afternoon of the same day, 6 electric roller trolleys drove the gears to rotate, and used the 90-minute railway to run the "skylight point" to rotate the main pier T3 of the bridge with a beam length of 122.75 meters and a weight of 32,000 tons clockwise by 77 degrees, making it turn beautifully and accurately docking.Editor/Ma Xue
Comment
Write something~