Hanger ropes of suspension bridges and stay-cables of cable-stayed bridges, even though very effective in carrying tensional loads of the bridge, are susceptible to various kinds of wind induced vibration due to their low damping ratio:

- aeolian vibration (vortex-induced vibration)
- galloping
- wake galloping
- rain-induced vibration
- parametric excitation
- buffeting

※ Notable Project ※

▶ Ulsan Bridge SB Damper
​▶ Norway Halogaland Bridge SB Damper
​▶ Turkey Canakkale Bridge SB Damper

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High Frequency SB Damper

Low Frequency SB Damper

Multi-mode Damper(Hign & Low Frequency)

SB Damper during the installation on suspension bridge

Suspension Bridge with SB dampers installed on the hanger cables

Stockbridge damper is not only much more cost efficient way of controlling cable vibration compared to traditional viscous dampers, but also is easier to install and its installation location can be easily adjusted to attain the maximum damping.

TESolution has technology and know-how in Stockbridge damper not only for suspension bridge, but also for cable-stayed bridge as well where it requires more careful control of low frequency modes.
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SB Damper installation for a hanger cable of a suspension bridge

Stockbridge Damper for suspension bridge (Palyung Bridge, 2016)

Stockbridge Damper for suspension bridge (Ulsan Bridge, 2015)

Stockbridge Damper for Cable Stayed bridge (Pyeongtaek Bridge, 2016)

Stockbridge Damper for Cable Stayed bridge (Baeksajang Footbridge, 2014)

Stockbridge Damper being installed on a hanger cable of a suspension bridge.