For occasions where bridge precast field can not be set due to terrain and other conditions or it is uneconomical to adopt prefabrication and erection from the investment considerations, part of China's high-speed railway bridges are erected by using the railway movable scaffolding system. This machine uses pier or pile cap as the support base. After the template is installed, assemble the reinforcing steel bars and pour concrete. Tension the prestressed steel bars to form the box girder. Then, the equipment moves to the next span to construct. This bridge construction method originated in Europe in the 1950s. Currently, it is widely used in China's bridge construction.
Our company has designed and manufactured more than 80 sets of bridge erection machine for the construction of China's high-speed railways. These products are divided into two types, overhead type and underslung type. Designed according to the features of each bridge, these products well adapt to the complex terrain conditions, realize outrigger rearrangement, and create the fastest construction record of one hole per eight days.
Prestressed Concrete Equipment | Rail Bridge Building Company | Truss Fabrication