Set-Loss Easy Correction System
The Set-Loss easy correction system can reduce set loss by using an HG grip with threads cut into the wedge anchorage and imparting prestress to a prestressed concrete (PC) structure in a narrow space. In a conventional set-amount correction system, after prestressing at a certain load, tension is released, the jack is removed, and the designated ram chair and tension jack need to be installed. However, in the Set-Loss easy correction system, the jack does not need to be removed during stress correction because the designated nose includes the ram chair function.
Set-Loss easy correction system hardware
NETIS Registration
NETIS Registration No.: TH-170009-A
Features
- The jack does not need to be removed during stress correction because the designated nose includes the ram chair mechanism.
- The working time is shortened because it is not necessary to remove the tension jack.
- Working space is reduced by using an HG grip, which can re-apply stress with the jack still in place.
Example of Using the Set-Loss System
A slab connection in half-section construction work
Transverse pre-stressing of outer cable at the anchorage and deflection part
