Appropriate renovation proposals are possible! Introducing cases where FRP materials were used for the renovation of suspension bridges.
We would like to introduce a renovation case of the "Hiji Otaki Suspension Bridge (Kunigami Village, Okinawa Prefecture)." This suspension bridge leads to the largest waterfall on Okinawa Island, which has a drop of about 26 meters and is surrounded by a subtropical deep forest. Corrosion of components made from foreign wood, except for the towers and cables, has partially surfaced, prompting the need for renovation work. All wooden parts have been replaced with corrosion-resistant FRP materials, resulting in a structure that can be used for a long time. 【Renovation Case】 ■ Renovation Details: Suspension Bridge (Width 1.5m × Length 50.0m) ■ Materials Used - Structural Material: Ipe → FRP - Decking: Bongoshi → FRP - Handrail: Bongoshi → FRP Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.
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■FRP materials that are lightweight, have high strength per unit weight, are corrosion-resistant, and are strong against salt damage. ■Pin foundation bases that do not require the use of heavy machinery or excavation of the ground surface. Our company has introduced these two technologies ahead of other companies in Japan and boasts a wealth of construction achievements. We are involved in the design and construction of bridges, decks, boardwalks, and piers in national parks and theme parks that are well-known to everyone. By partnering with a Dutch company and introducing new technology using FRP materials, we have made it possible to construct long-span FRP bridges that were previously difficult to achieve. Furthermore, a durability of over 60 years is expected, making this a technology that can open up new markets in the future.
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