Full span precast method
The full span precast method of erection is suited for specific structures comprising multiple spans of similar lengths and minimum curvature. The best references of VSL Group in this area include the Taiwan High Speed Rail.
Full span precast elements can be made under factory conditions that improve safety, precision and efficiency of works. Besides work platforms at pier heads, only very little temporary structures are required on site. The delivery of manufactured spans along the already made part of the bridge structure in no way disrupts the existing road traffic and no terrain improvement works are necessary that would otherwise be required if spans are transported at ground level.
The achieved rate of erection for the above mentioned project was nearly 2 spans per day on average.