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

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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

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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

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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)

 

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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.

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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

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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

 

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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.}