Super wide box with angled support
■ The "Oblique Super Wide Box" is applicable to ultra-large cross-sections ranging from 10.0m to 13.0m in width. ■ The oblique angle can be freely set within the range of 75° to 90°. ■ By setting the oblique angle to match intersecting rivers or roads, it enables highly flexible design to maximize land use. ■ It is also compatible with other forms such as portal culverts. ■ To accommodate faster construction, it is also possible to use precast components for the bottom slab.
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basic information
【Design Conditions】 Soil Cover: 0.2m to 2.0m 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: Not considered Applicable Ground: Generally, good ground of ordinary ground or better. Allowable Tensile Stress of Reinforcement: 180 N/mm² Side Wall Joint Method: Joint using PC steel bars Concrete Design Standard Strength: Top Slab Member: 50 N/mm² Side Wall Member: 40 N/mm² Bottom Slab Member: 30 N/mm² (cast in two locations) *Separate considerations can be made outside the above design conditions. *If the inside of the box includes a roadway, sidewalk, and high external water level, water stop measures need to be considered.
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CAD data（8）
| Model number | overview | File |
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| syakakuswb_10000x5500.dxf |
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| syakakuswb_11000x5500.dxf |
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| syakakuswb_12000x5500.dxf |
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| syakakuswb_13000x5500.dxf |
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| syakakuswb_10000x5500.sfc |
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| syakakuswb_11000x5500.sfc |
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| syakakuswb_12000x5500.sfc |
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| syakakuswb_13000x5500.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.