Halogaland Bridge

2nd Jindo Bridge
Halogaland Bridge
Specifications of Mass Dampers:
▣ Type: Stockbridge Damper for the Control of Vibration in Hanger Cables (100 sets)
▣ Control Direction: Two Horizontal Dir.
▣ Specification
   - Moving Mass: 4.62kg +7.90 kg
   - Max. Stroke: Φ-16mm
▣ Conceptual & Detailed Design / Manufacture /
​      Installation / Performance test /
Effectiveness of TE Solution's SB Damper
The Hålogaland Bridge, with a total length of 1,533 meters and a main span of 1,145 meters, was the longest suspension bridge within the Arctic Circle at the time of its completion. Even today, it remains one of the longest bridges in the Arctic region. Due to its considerable length, the bridge features hanger cables with low inherent damping and high structural flexibility, making it particularly vulnerable to wind-induced vibrations.
The SB dampers provided by our company are among the most effective devices for controlling wind-induced vibrations on hanger cables. These dampers come in three types: high-frequency, low-frequency, and hybrid. Through analysis of the wind-induced responses of the hanger cables, vortex-induced vibrations (VIV) were identified as a critical issue. To effectively mitigate this phenomenon, high-frequency dampers were proposed, and two dampers were installed per cable.
Picture
SB Damper Installed in Each Cable