Offshore Tripod Foundations

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A foundation on three legs

In deeper water a tripod spreads the turbine’s load onto three piles. It is heavy rolled plate from top to bottom.

Scroll to see how it is built · drag to turn it round

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Rolled cans

Cans rolled from thick plate and welded on the submerged-arc line, with the tower flange on top.

How is it possible at Allmarc?

Three-roll pinch cum pyramid plate rollsRolls plate up to 40 mm

Used here for: Rolled cans

• Rolls plate up to 40 mm

All our machinery

Submerged-arc (SAW) welding lineFull-penetration welds on built-up sections

Used here for: Rolled cans

• Full-penetration welds on built-up sections

All our machinery

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Legs and braces

Tubes profiled where they meet the column, so every node fits before welding.

How is it possible at Allmarc?

CNC profile laserTube, beam and structural profile cutting

Used here for: Legs and braces

• Tube, beam and structural profile cutting

All our machinery

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Pile sleeves and mud mats

Sleeves the piles are driven through, and plates that hold the tripod on the seabed until it is piled.

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Access at the top

A ring platform at the transition flange.

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Every part, apart

Column, legs, braces, sleeves and mats.