Stay Cable Systems
VSL stay-cable systems are made up of:
- Tensile elements that carry the load;
- Anchor components that transfer the loads to the structure;
- Cable encapsulation to provide protection against environmental factors, and manage the response to ice and wind;
- Deck-level protection against vandalism, fire and blast;
- Transition devices for control of vibration and deviation of the cable.
VSL SSI 2000 is the company’s well-proven and widely used state-of-the-art stay-cable system. It exceeds the highest standards of fatigue performance and includes a high level of corrosion protection.
SSI 2000 is also available as a compact version designed to limit the impact of wind: SSI 2000C has a smaller cable diameter that greatly reduces wind drag.
VSL uses SSI technology, meaning ‘strand by strand installation’: the light weight of the equipment – and the cables in particular – allows for extreme ease and flexibility of installation compared to systems with parallel wire strands (PWS).
SSI also allows for easy replacement of components throughout the entire lifecycle of the structure, without the need to dismantle the anchorages or the rest of the cable.
Stay-cable erection with the SSI system permits full control of operational risks.
The VSL SSI system is highly modular and can therefore accommodate various types of strand:
- Galvanized, waxed and sheathed strand in accordance with fib or CIP standards;
- Waxed and sheathed strand in accordance with PTI standards;
- SSI 2000 is fully proven for use with ultra-high-grade strand (2200MPa)
- SSI 2000D, which meets fib standards, is the world’s most compact stay-cable system with active corrosion protection. Its permanent dehumidification unit provides a controlled environment that not only protects the steel strands from corrosion, but also allows for easy monitoring and inspection.