Super large box culvert with post-tensioned PC steel materials arranged in the top slab.
■NETIS CB-080002-A (Publication Ended) ■This is a box culvert constructed with PC steel materials for the top slab and side wall components, designed with a PRC structure. ■It is suitable for ultra-large cross-sections ranging from 10.0m to 13.0m in width. (Please consult us if exceeding 13.0m) ■The top slab and side wall components are made of precast concrete, while the bottom slab component is constructed with cast-in-place concrete. ■To shorten the construction period, it is also possible to use precast components for the bottom slab. ■The angle can be freely set up to 75°. (Please contact us for angles less than 75°) ■It is widely adopted at many sites as an alternative to small-scale bridges.
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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: Jointed with 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 contains a roadway, sidewalk, and high external water level, water-stopping measures need to be considered.
Price information
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Delivery Time
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Applications/Examples of results
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Detailed information
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Construction Achievements Fukushima Prefecture (Station Front Terminal)
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Construction achievements Saitama Prefecture (73° sloped box)
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Construction Achievements Gifu Prefecture
catalog（2）
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CAD data（8）
| Model number | overview | File |
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| swb_10000x5500.dxf |
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| swb_11000x5500.dxf |
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| swb_12000x5500.dxf |
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| swb_13000x5500.dxf |
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| swb_10000x5500.sfc |
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| swb_11000x5500.sfc |
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| swb_12000x5500.sfc |
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| swb_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 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.