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, the thickness of the members can be reduced, resulting in a lighter weight compared to RC box culverts. Standard sizes range from width 1.8m × height 1.2m to width 5.0m × height 2.5m.
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basic information
【Design Conditions】 Soil cover: 0.5m to 3.0m Dead load Unit weight of reinforced concrete: 24.5kN/m3 Unit weight of soil: 18.0kN/m3 Unit weight of asphalt: 22.5kN/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: In principle, it should be good ground of ordinary ground or better. *For specific design details, please refer to the Precast Box Culvert Design and Construction Manual by the National Box Culvert Association. *Separate 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.
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, engage in talent development and fair personnel practices, and cultivate a free and open corporate culture. 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.