Fast Installed Prefabricated Segmental Box Girder Bridge AISI ASTM Standard
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Fast Installed Prefabricated Segmental Box Girder Bridge AISI ASTM Standard
| Product Name | Steel Box-girder bridge |
| Bridge Deck | Concrete |
| Type | Single Box Girder Bridge; Double Box Girder Bridge; Multiple Box Girder Bridge |
| Material | Prefabricated Steel |
| Standard | AISI, ASTM, BS, DIN, GB, JIS |
| Dimensions | Customized |
Steel Box-Girder Bridge Structure
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). Factory welding is preferred to ensure weld quality, with strict quality control measures.
Orthotropic Steel Bridge Panels
The top plate features vertical and horizontal stiffeners forming an orthogonal bridge panel. This design offers excellent mechanical properties in both bridge directions, efficiently bears local wheel loads, and optimizes steel usage.
Box girders serve as primary beam forms for various bridge types including beam bridges, suspension bridges, and cable-stayed bridges.
Bridge Types and Applications
Single Box Steel Beam Bridge
Ideal for bridges with width ≤3 lanes or width-to-span ratio
![Single box steel beam bridge design]()
![Single box multi-chamber configuration]()
![Double box steel girder bridge design]()
![Multi-box steel girder bridge configuration]()
![Flat steel box-girder bridge proportions]()
- Effective flange width: main beam web interval ≤Le/5
- Main beam cantilever length ≤Le/10
- Beam spacing: 1.5m-3m (open rib) or 2m-4m (closed rib)
Double Box Steel Girder Bridge
Used when bridge width is large or single box dimensions become impractical for production, transportation, or installation.
Multi-box Steel Girder Bridge
Optimal for wide bridges with small spans, featuring uniformly spaced main beams for balanced load distribution.
Structural Components
Longitudinal Beam
Reduces span of reinforced concrete bridge panels and enhances steel bridge panel stiffness. Spacing ≤3m for concrete panels.
Transverse Beam
Spacing ≤6m when longitudinal beams are present (max 20m without). Ensures lateral load distribution and supports longitudinal beams/bridge panels.
Support Systems
Single-box bridges require two end supports for stability. Multi-box bridges typically use one support per box, with temporary fulcrums for structural reinforcement during installation.
Mechanical Characteristics
Steel box-girder bridges are designed to withstand:
- Bending moment-induced compression flange instability
- Torque-induced distortion
- Concentrated force-induced web crumpling
Structural Reinforcement Measures
Critical reinforcement includes transverse partitions to prevent distortion, stiffening ribs to maintain flange stability, and web reinforcement to resist buckling during fabrication and installation.
Advantages
- Superior structural efficiency and stiffness
- Versatile applications for road, rail, and high-speed rail
- Rapid installation and simplified maintenance
- Enhanced durability and longevity
- Sustainable construction solution
- Lightweight design with optimized steel usage
- Excellent torsional resistance and aesthetic appeal
Evercross Steel Bridges Specifications
| Product Range | 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 |
| Certificates | ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP |
| Welding Standards | AWS D1.1/AWS D1.5, AS/NZS 1554 or equivalent |
| Bolting Standards | ISO898, AS/NZS1252, BS3692 or equivalent |
| Galvanization Standards | ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent |
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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