Earthquake Dampers for Bridges
Viscous Dampers Deliver Unmatched Bridge Protection
Long Stroke Dampers
Our long stroke viscous dampers provide bridge isolation for some of the world’s most traveled bridges.
- Forces up to 2000 Kips
- Strokes up to 60 inches
- Alpha .2 to Linear, Lock up
- In line, self contained spring loaded reservoir
- Visual or electronic remote fluid monitoring system
Coronado Bridge - San Diego, California
Equipment: 3400 m long suspension bridge, excitation by vehicles, wind and seismic events
- Qualification: customized test criteria on component level
- Solution: 20 Enidine Viscous Damper 300 KIP X 18 inch stroke
McKay Bridge: Halifax, Nova Scotia CA
Tuned Mass Damping
- Equipment: Suspension Bridge
- Qualification: Customized test criteria on component level
- Solution: (12) Linear Viscous Damper for Tuned Mass Damper – Power Dissipation 300 Watt continuous
Vincent Thomas Bridge, San Pedro, California
Sesimic Damping
- Equipment: 1840 m long suspension bridge
- Qualification: customized test criteria on component level
- Solution: Enidine Friction / Viscous Damper (48 elements)
Yangluo Bridge-阳逻大桥, Wuhan, China
FVD Sesimic Damping
- Equipment: Long-Span suspension bridge
- Qualification: Customized test criteria on component level
- Solution: (4) Nonlinear Fluid Viscous Dampers – Fmax of 1000KN and a total stroke of 2000MM.
Shenzhen Bridge: Hong Kong, China
Tuned Mass Damping
- Equipment: Hybrid Cable Stay Design
- Qualification: Customized test criteria on component level
- Solution: Linear Viscous Damper for Tuned Mass Damper – Power Dissipation 1000 Watts, 500mm Stroke
Lake Barkley Bridge: Aurora, KY USA
Seismic Damping
- Equipment: 3792 ft bridge, Twin Basket Handle Steel Suspended Main Span, East and West box Girder Approaches
- Qualification: customized test criteria on component level
- Solution: QTY 12 Endine FVD 250kip x 20inch Total Stroke, QTY 6 at each approach end bents
Santiago Creek: San Diego, CA USA
Seismic Damping
- Equipment: Slab bridge
- Qualification: Customized test criteria on component level
- Solution: (6) Nonlinear Fluid Viscous Damper – Fmax of 160kips and a total stroke of 30 inches.
Whether it’s the Vincent Thomas Bridge in California or the Yangluo Bridge in China, our bridge isolation solutions give travelers peace of mind.
