OEM Simple Prefabricated Steel Box Girder Bridge Large Span Sleek Design
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
OEM Simple Prefabricated Steel Box Girder Bridge Large Span Sleek Design
Product Specifications
| Attribute | Value |
|---|---|
| Product Name | Steel Box-girder bridge |
| Bridge Deck | Concrete |
| Type | Steel Box Girder Bridges |
| Material | Prefabricated Steel |
| Application | Road/Bridge |
| Design | As Needs |
| Load Capacity | High |
| Weight | 5000tons |
| Aesthetics | Sleek |
| Weather Resistance | Excellent |
| Lifespan | 100years |
| Height | 3m |
| Maintenance | Low |
| Cost | Moderate |
| Corrosion Resistance | Strong |
| Length | 5000m |
| Width | 10m |
Product Description
The steel box-girder bridge is composed of top plate (bridge panel), beam web, bottom plate, longitudinal stiffener, transverse stiffener, and diaphragm plate (cross beam). The thickness of the top plate, beam web and bottom plate is generally 12~30mm, with secondary plate thickness of 10~20mm.
Orthotropic Steel Bridge Panels
The basic forms of longitudinal rib section are open and closed. The cross-section form of the ribs is typically inverted T shape, with spacing determined by the span of the longitudinal ribs. Transverse ribs feature notches to allow continuous passage of longitudinal ribs.
Structural Forms
Single Box Steel Beam Bridge: Ideal for bridges with width ≤3 lanes or width-to-span ratio ![Single box steel beam bridge structure showing web and stiffeners]()
![Double box steel girder bridge configuration]()
![Multi-box steel girder bridge layout]()
Double Box Steel Girder Bridge: Used when bridge width is large or single box size becomes impractical for production, transportation, or installation.
Multi-box Steel Girder Bridge: Optimal for small spans with large bridge widths, featuring uniformly-spaced main beams for balanced force distribution.
Structural Components
Longitudinal Beam
Reduces span of reinforced concrete bridge panels (≤3m spacing) and enhances steel bridge panel stiffness. For steel panels with small beam spacing, longitudinal beams may be omitted.
Transverse Beam
Ensures even stress distribution across multiple boxes, supports longitudinal beams/bridge panels, and improves overall torsional resistance. Spacing ≤6m with longitudinal beams, ≤20m without.
Support Systems
Single-box bridges require two end supports for stability. Multi-box bridges use one support per box. Temporary fulcrums with jacks provide additional structural reinforcement during installation.
Mechanical Characteristics
Potential Failure Modes:
- Compression flange instability under bending moment
- Box girder distortion under torque
- Web crumpling near concentrated forces
Structural Reinforcement Measures:
- Transverse partitions to prevent distortion
- Stiffening ribs for compression flange stability
- Web stiffeners to resist buckling
- Proper rib spacing during fabrication
Key Advantages
- Structural Efficiency: Superior strength-to-weight ratio enables longer spans with less material
- Stiffness & Stability: Closed box section provides high torsional rigidity and bending resistance
- Versatility: Adaptable to straight, curved, or cable-stayed configurations
- Construction Efficiency: Prefabricated modules reduce on-site assembly time
- Durability: Corrosion-resistant steel ensures decades of service with proper maintenance
Evercross Steel Bridges Specifications
| Bridge Types | Bailey bridge (Compact-200, Compact-100, LSB, PB100, China-321, BSB), Modular bridge (GWD, Delta, 450-type), Truss Bridge, Warren bridge, Arch bridge, Plate bridge, Beam bridge, Box girder bridge, Suspension bridge, Cable-stayed bridge, Floating bridge |
|---|---|
| Design Spans | 10M TO 300M Single span |
| Carriage Way | SINGLE LANE, DOUBLE LANES, MULTILANE, WALKWAY |
| Loading Capacity | AASHTO HL93.HS15-44, HS20-44, HS25-44, BS5400 HA+20HB, HA+30HB, AS5100 Truck-T44, IRC 70R Class A/B, NATO STANAG MLC80/MLC110, Truck-60T, Trailer-80/100Ton |
| Steel Grade | EN10025 S355JR S355J0/EN10219 S460J0/EN10113 S460N/BS4360 Grade 55C, AS/NZS3678/3679/1163/Grade 350, ASTM A572/A572M GR50/GR65, GB1591 GB355B/C/D/460C |
| Certifications | ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO.,LTD.
Location
10th Floor, Building 1, No. 188 Changyi Road, Baoshan District, Shanghai,China
Contact Person
Libby Chen