The Jingzhou Guanyin Temple Yangtze River Bridge is a critical control project for the Jiangling Songzi section of the Wuhan Songzi Expressway in Hubei Province. The bridge adopts a main span of one span to cross navigable waters. The total length of the main bridge is 1860m, and it is a double tower, double cable surface, semi floating system cable-stayed bridge. It is currently the world's largest large-span highway cable-stayed bridge and the world's first hybrid composite structure cable-stayed bridge exceeding one kilometer.

▲Construction site of Jingzhou Guanyin Temple Yangtze River Bridge

The project has specifically introduced a powerful tool for high-altitude construction of the main tower - the Zoomlion R4300-200 tower crane, with a height of 284.4 meters. The maximum lifting capacity of this tower crane can reach 200 tons. In non working conditions, it can withstand typhoons of level 12 and has strong wind resistance. During the construction phase of the main tower in the middle and lower tower columns at high altitude, the tower crane is mainly used for the lifting of steel reinforcement components, with a lifting weight of 110 tons; During the construction phase of tower columns at ultra-high altitude, it is mainly used for lifting components such as steel shells, steel anchor boxes, and steel beams, with a maximum lifting weight of 160 tons.

Recently, the online inspection equipment for steel wire ropes of the micro tower crane has been successfully installed on the tower crane. This is another major tower project collaboration after the 12000 ton Changtai Bridge project and the 20000 ton Ma'anshan Public Railway Bridge project.

▲installation site