Steel Box Girder Bridge with High Flexural & Torsional Stiffness | 10-300M Spans | 60-100T Loading Capacity
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Steel Box Girder Bridge Structural Design
Steel box girder bridges are engineered structures composed of top plate (bridge deck), beam web, bottom plate, longitudinal stiffeners, transverse stiffeners, and diaphragm plates (cross beams). These bridges offer exceptional flexural and torsional stiffness with substantial loading capacity.
Orthotropic Steel Bridge Panels
The bridge deck features longitudinal ribs in open or closed cross-section forms, typically inverted T-shape configurations. The top plate is welded with vertical and horizontal stiffeners to form an orthogonal bridge panel system that efficiently distributes wheel loads.
Structural Configurations
Single Box Design: Ideal for bridge widths up to 3 lanes or width-to-span ratios less than 1/10. Features beam spacing of 1.5-3m (open rib) or 2-4m (closed rib).
Double Box Design: Suitable for wider bridges where single box becomes impractical. Can be configured with or without cross beams.
Multi-Box Design: Optimal for small spans with large bridge widths. Features uniform main beam spacing for balanced load distribution.
Key Structural Components
Longitudinal Beams: Reduce reinforced concrete deck spans (maximum 3m) and enhance steel bridge panel stiffness.
Cross Beams: Ensure uniform stress distribution across multiple boxes. Spacing: ≤6m with longitudinal beams, ≤20m without longitudinal beams.
Mechanical Performance & Safety Features
These bridges are engineered to prevent common failure modes including compression flange instability, beam web crumpling under concentrated forces, and distortion through adequate transverse partitions and stiffening ribs.
Evercross Steel Bridge Specifications
| Specification | Details |
|---|---|
| Bridge Types | Bailey bridge, Modular bridge, 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 |
| Welding Standards | AWS D1.1/AWS D1.5, AS/NZS 1554 or equivalent |
| Bolts | ISO898, AS/NZS1252, BS3692 or equivalent |
| Galvanization | ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent |
Key Advantages
- High flexural and torsional stiffness for superior structural performance
- Large loading capacity supporting 60T trucks and 100T trailers
- Lightweight construction with significant steel savings
- Rapid installation and simplified maintenance procedures
- Excellent wind resistance and suitability for curved bridge applications
- Modular design allowing spans from 10M to 300M
Applications: Road, rail, and high-speed rail infrastructure projects requiring durable, high-capacity bridge solutions.
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Company
EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO.,LTD.
Location
ROOM 403,NO.2 BUILDING,NO.269 TONGXIE ROAD,CHANGNING DISTRICT,SHANGHAI,CHINA
Contact Person
Libby Chen