[Case Study of Wooden Facility Renovation] Kirishima Mountain Water Management Bridge - Tenkei Bridge
Appropriate renovation proposals are possible! Introducing cases where FRP materials have been used for the renovation of suspension bridges.
We would like to introduce a renovation case of the "Kirishima Mountain Water Management Bridge, Tenkei Bridge (Kirishima City, Kagoshima Prefecture)." Located behind Kirishima Shrine, this gorge is stunning with fresh greenery in spring and beautiful autumn leaves. After 30 years since its construction, renovations were carried out due to aging and to improve convenience. FRP (Fiber Reinforced Plastic) decking and girders were used for their lightweight and high durability. 【Renovation Case】 ■ Scale: Suspension Bridge (Width 1.0 m × Length 27.4 m) ■ Materials Used - Structural Material: Cedar → FRP - Decking: Cedar → FRP - Handrail: Wire Rope → Wire Rope + Nylon Net Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloy, 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.
