● Significant weight reduction compared to concrete coverings ● Contributes to shorter construction periods and improved workability ● Impact dispersion structure reduces damage to the floor slab
"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 many bridges across the country, including the Enoshima Ohashi Bridge. Even bridges that had given up on widening due to increased dead load with conventional concrete substructures can expand their possibilities with "Bridge Plus Alpha." Additionally, it can accommodate various functional additions such as drainage pits and lighting fixtures. Please feel free to contact us. We will prepare and submit an estimate of reference cross-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 (roadway) 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: 470kg/m; Bridge Plus: 170kg/m, approximately 60% reduction). ------------------------------------------------------------------------------------ 【Surface Treatment】 Hot-dip galvanized (additional constant-dry fluororesin coating is also possible).
Price range
Delivery Time
Applications/Examples of results
【Purpose】 ● Widening of existing bridges ● Repair and renovation of existing bridge foundations 【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 with lighting plus extra features
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Installation example: Kotohira Bridge
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Example of installation: 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 "Bridge Plus Alpha" road widening method 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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