Bridge-Cable Dampers
Rubber Damper System for Heightened Safety and Durability of Cable-Stayed Bridges
Cable-stayed and extradosed bridges not only help create a smooth flow of traffic in an urban environment, their elegant design adds to the beauty of the landscape. The Sumitomo Cable Damper protects a bridge by decreasing wind-and rain-induced vibrations that threaten the safety of the cables with a damper that absorbs a high degree of energy and improves the durability of the bridge. Due to the high degree of damping provided by the system, cable vibration can be controlled and by decreasing the stress fatigue placed on cable stays, improved levels of durability and safety can be reached. Sumitomo's damper systems feature designs and specifications which can be applied to a variety of structures and conditions, helping to create a symbiosis between civil engineering and nature.
Structure and Features of High Damping Rubber Damper
- Consistent performance (Small changes in performance with respect to temperature, frequency and displacement, proven by 10 million vibration tests.)
- Excellent durability
- Low cost
- Simple and compact in construction
- Excellent workability
![](/img/bridge-cable/pic01.png)
![](/img/bridge-cable/pic02.png)
Vortex-induced Vibration (Single Vibration)
![](/img/bridge-cable/figure_vortex-induced-vibration.png)
Wake Galloping (Interference Between Cables)
![](/img/bridge-cable/figure_wake-galloping.png)
Rain Vibration (Rain)
![](/img/bridge-cable/figure_rain-vibration.png)
Performance
![](/img/bridge-cable/pic_performance01.jpg)
![](/img/bridge-cable/fig_performance01.png)
Lineup
In order to design a cable damper, some information is required. Please provide the following information when consulting with Sumitomo Hybrid directly or with an affiliated outlet:
- Cable length
- Cable diameter
- Cable tension
- Unit weight
- Install position
![](/img/bridge-cable/lineup_fixed-pipe.jpg)
Fixed pipe type
![](/img/bridge-cable/lineup_rod.jpg)
Rod type
![](/img/bridge-cable/lineup_steel-pipe.jpg)
Steel-pipe type
![](/img/bridge-cable/lineup_waterproof-rubber.jpg)
Waterproof rubber cover
Results
![バイチャイ橋](/img/bridges/baichai.jpg)
Baichai Bridge
![星の降る里大橋](/img/bridges/case_hoshinofurusato.jpg)
Hoshinofurusato bridge
![小田原ブルーウェイブリッジ](/img/bridges/case_odawara.jpg)
Odawara BlueWay bridge
![都田川橋](/img/bridges/case_todagawa.jpg)
Toda-river bridge
![矢作川橋](/img/bridges/case_yahagigawa.jpg)
Yahagi-river bridge
![木曽川橋](/img/bridges/case_kisogawa.jpg)
Kiso-river bridge
![女神大橋](/img/bridges/case_megami.jpg)
Megami bridge
![またきな大橋](/img/bridges/case_matakina.jpg)
Matakina bridge