Precast box culverts made of prestressed concrete according to the recommended specifications of JISA 5373 by the National Box Culvert Association.
By placing PC steel materials on the top and bottom plates, it is possible to reduce the thickness of the members, resulting in a lighter structure compared to RC box culverts. Standard sizes range from a width of 1.8m × height of 1.2m to a width of 5.0m × height of 2.5m.
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basic information
【Design Conditions】 Soil Cover: 0.5m to 3.0m Dead Load Unit Weight of Reinforced Concrete: 24.5 kN/m³ Unit Weight of Soil: 18.0 kN/m³ Unit Weight of Asphalt: 22.5 kN/m³ Live Load (Road Crossing): T-25t Horizontal Earth Pressure Coefficient: 0.50 Groundwater Level: The maximum groundwater level is set at 50cm below the road surface. Applicable Ground: Generally, it should be good ground of normal quality or better. *For specific details of the design, please refer to the Precast Box Culvert Design and Construction Manual by the National Box Culvert Association. *Additional considerations can be made outside of the above design conditions. *For more details, please refer to the related links or feel free to contact us.
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For more details, please refer to the related links or feel free to contact us.
catalog（1）
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CAD data（16）
| Model number | overview | File |
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| pc-box_1800-2000.dxf |
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| pc-box_2200-2300.dxf |
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| pc-box_2400-2500.dxf |
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| pc-box_2800.dxf |
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| pc-box_3000.dxf |
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| pc-box_3500-4000.dxf |
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| pc-box_4500-5000.dxf |
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| Standard cross-section.dxf |
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| pc-box_1800-2000.sfc |
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| pc-box_2200-2300.sfc |
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| pc-box_2400-2500.sfc |
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| pc-box_2800.sfc |
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| pc-box_3000.sfc |
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| pc-box_3500-4000.sfc |
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| pc-box_4500-5000.sfc |
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| Standard cross-section.sfc |
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Company information
Our company, under the belief of contributing to society through the development of social infrastructure, constantly strives for quality improvement and technical advancement. With the conviction that business is about people, we respect humanity and foster a free and open corporate culture through talent development and fair personnel practices. We aim to deepen mutual understanding and trust, working together towards the development of the company and the enhancement of welfare, while concentrating all our efforts on stabilizing and expanding our management foundation.