福建龙岩市龙岩大桥 The bridge had undergone its first rotation a little over four months ago. The bridge tower was rotated 69-degree the first time to allow the completion of the bridge deck installation.
At around 2:30 a.m. the cable-stayed bridge and deck with a total weight of 23,600 tons completed a 21-degree counterclockwise rotation, it took about an hour. It is the first time in the world for the “second horizontal rotation” construction process.
The reason for the second rotation is because there’s a “double risk” in the construction of the Longyan Bridge.
The first is that the Longyan Bridge will cross the existing Ganlong Railway and Longxia Railway 赣龙铁路、龙厦铁路 . Nearly 120 trains pass through these two railroads every day.
The second is that the shortest distance between the main tower and the railway line is only 6.5 meters.
The two turns are to overcome these two risks.
When completed the Longyearbyen Bridge will be an important link in the Longyan expressway system improving the efficiency of local transport operations and helping to accelerate the development of the old area.
