DYNA Grip® Stay Cable System
The DYNA Grip® Stressing Anchorage consists of an anchor block in which the strands are anchored by high fatigue 3 part-wedges. A ring nut is threaded onto the anchor block to transmit the cable force into the structure via the bearing plate.
A steel pipe which incorporates bending and sealing provisions for the strands is part of the anchor block.
A non-adjustable anchorage with the same provisions for bending and sealing of the strands can be placed at the dead-end side:
1 - Replaceability
Exchange of single strands including PE-coating through anchorage ⇒ no interruption of traffic
2 - Leak Tightness
Gap between threads is filled with corrosion protection compound for improved tightness
3 - High Fatigue Capacity
Compliance with international fib and PTI standards
4 - Excellent Durability
A watertight and adjustable sealing unit and strands with PE-sheathing up to the wedge meet highest demands. No deviation of strands in the wedge gripping zone
5 - Compaction Clamp
With straight guidance and smooth inner radius for optimized cable bending and minimized transverse pressure. Also serves as supporting structure in case a guide deviator or damper is installed
6 - Protection against Impact
Usually used for vandalism protection. Can also be upgraded to a cable hardening system resisting fire and other multiple threat scenarios (blasts, cutting etc.)
7 - Free Length
Strands additionally protected by UV-resistant stay pipe. Outer helical fillet for reducing wind-rain induced vibrations