Hybrid pontoon, steel pontoon
The JFE Hybrid Pontoon consists of a composite plate and steel members.
The plate thickness can be reduced by using high-strength composite plates. Steel pontoons are also available, where the outer wall consists of steel plates only.
Features of the construction method
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The plate thickness can be reduced and the weight can be reduced.
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It can be installed in shallow water depths.
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The inside of the box is completely watertight.
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The steel plate on the concrete-coated inner surface is resistant to corrosion.
Hybrid Pontoons (Overview of Construction Method)
Composite plates and steel shell walls are used
⇒ Thin wall
⇒ Light weight allows for a smaller draft
Construction examples
| Name of construction work | Floating pier in Kanda Port |
|---|---|
| Client | Fukuoka Prefecture |
| Purpose/function | Floating pier for mooring fishing vessels, etc. |
| Year of construction | 2009 |
| Dimensions | 52 m (length) × 41.8 m (width) × 22 m (height) |
| Quantity (/case) | Dead weight = 156 tons |
| Features/functions | Mooring method: Pile mooring Structure type: Steel |
| Name of construction work | Nakagusuku Bay Port (Ajama area) Floating Jetty |
|---|---|
| Client | Okinawa Prefecture |
| Purpose/function | Cruise ship landing/landing place |
| Year of construction | 2006 |
| Dimensions | 24.0 m (length) x 9.0 m (width) x 1.8 m (height) |
| Number of units | 1 case |
| Weight | 222 t/case |
| Steel weight | 64 t/case |
| Concrete volume | 44 m3 |
| Design overview | Installation water depth -2.5 m, design wave height (H1/3) 1.12 m, dry port 0.8 m |
| Features/functions | Composite structure, pile mooring |
| Name of construction work | Sea fishing park maintenance work |
|---|---|
| Client | Osaki-cho, Hiroshima Prefecture |
| Purpose/function | Fishing pier |
| Year of construction | 2001 |
| Dimensions | Height = 1.5m, width = 5.0m, length = 48.0m, draught = 0.5m |
| Quantity (/case) | Dead weight = 76.8 tons |
| Design overview | Installation water depth = '-7.0 m, design wave height = 0.93 m (H1/3) |
| Features/functions | Chain mooring, ramp type connecting bridge |
| Name of construction work | Pier construction work in International Exchange Zone of Yokohama Minato Mirai 21 area |
|---|---|
| Client | Port and Harbor Bureau, City of Yokohama |
| Purpose/function | Waiting room/Restaurant |
| Year of construction | 1991 |
| Dimensions | Height = 3.2 m, width = 24.0 m, length = 24.0 m, draught = 2.0 m |
| Quantity (/case) | Full load displacement = 1200 tons (steel = 260 tons, Con. = 206 m3) |
| Design overview | Installation water depth = '-7.0 m, design wave height = 1.66 m (H1/3) |
| Features/functions | Dolphin mooring, building, ramp type connecting bridge |
| Remarks | Ship Safety Law and Building Standard Law applied |