●Significantly lighter compared to concrete coverings ●Contributes to shorter construction periods and improved workability ●Reduces damage to the floor slab with shock-dispersing structure
"Bridge Plus Alpha" is a road widening method using steel substructures. The lightweight substructure units offer excellent workability, and the factory-manufactured units enable a reduction in construction and regulation periods. It has been widely adopted in various bridges across the country, including the Enoshima Ohashi Bridge. Even for bridges that had to give up on widening due to increased dead load with traditional concrete substructures, "Bridge Plus Alpha" expands the possibilities for widening. Additionally, it can accommodate various functional additions such as drainage pits and lighting fixtures. Please feel free to contact us first. We will prepare and submit an estimate of reference sections, dead loads, material costs, and installation costs according to your requests. ● NETIS Registration Number: KT-230106-A
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basic information
【Features】 - Along with the railing renovation, it is possible to widen the road width (expansion of 1.0m (car lane) to 1.5m (sidewalk) on one side). - The construction period and road restriction period can be shortened (approximately 70% reduction compared to conventional methods). - Load reduction on existing bridge deck (e.g., concrete: 700kg/m; Bridge Plus: 220kg/m, approximately 70% reduction). ------------------------------------------------------------------------------------ 【Surface Treatment】 Hot-dip galvanized (additional constant-dry fluororesin coating is also possible).
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Delivery Time
Applications/Examples of results
【Purpose】 ● Widening of existing bridges ● Repair and renovation of existing bridge decks 【Delivery Achievements】 Ministry of Land, Infrastructure, Transport and Tourism Hokkaido Development Bureau East Japan Railway Company Kyushu Railway Company Local governments, etc.
Detailed information
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Shock-absorbing structure with patent acquisition
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Bridge with drainage pit plus additional features
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Bridge Plus Alpha with Lighting Lamp
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Example of installation: Kotohira Bridge
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Installation example: Morokoshi Bridge
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Installation example: Enoshima Ohashi Bridge
Company information
Since our founding in 1949, we have continuously engaged in technological development and research, thoroughly implementing precision management and quality control to meet the needs across a wide range of fields. Our products, such as the road widening method "Bridge Plus Alpha" using steel ground cover and back mullions for curtain walls of skyscrapers, support various infrastructures with advanced technology while achieving high precision and design quality.
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