3G Shiplift, Yangtze River, China

POST-TENSIONING SYSTEMS

Project:    
3G shiplift, Yangtze River, China

Client:    
China Three Gorges Corporation

Construction period:    
2010 - 2014

Construction company:
China Gezhouba Group Corporation

Supplier:
SAS Asia Bar Systems

Scope of supply:
708 sets of bar tendons of smooth bars SAS 950/1050 Ø 36 mm, with both end fine thread; unbounded tendons, complete system supplied and consisting of bars, plates, nuts (special anchor nuts and caps designed by SAH for this project)

Application:    
Fix of the nut post of the world biggest ship lift. A vertical shiplift allows ships to pass the Three Gorges Dam at the Yangtze River. The size of the ship chamber is 132 m long and 23 m wide and a depth of 3.5 m and 
designed for a capacity of lifting 3.000 tons. The total lifting weight is 34,000 tons and the lifting height is 113 m. A driven jack screw runs in a steel shaft to lift up the enormous weight and provide a safe emergency stop system. This steel shaft is fixed with the SAS pt-tendons to the concrete member transferring the extreme load. Supervision for installation has been provided by Stahlwerk Annahütte.