OEM Composite Box Girder Bridges - Prefabricated Steel Large Span 10-300m with AASHTO HS20-44 Loading
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Steel Box Girder Bridge Overview
Prefabricated steel box girder bridges offer exceptional structural efficiency for large-span applications. These bridges feature a closed box section design that provides superior torsional rigidity and bending resistance.
Structural Components
Steel box girder bridges consist of multiple integrated components:
- Top plate (bridge panel) with thickness 12-30mm
- Beam web and bottom plate with thickness 12-30mm
- Longitudinal and transverse stiffeners with thickness 10-20mm
- Diaphragm plates (cross beams)
- Orthotropic steel bridge panels with open or closed rib sections
Design Specifications
| Parameter | Specification |
|---|---|
| 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, NATO STANAG MLC80/MLC110 |
| Steel Grade | S355JR, S355J0, S460J0, Grade 350, GR50/GR65 |
| Manufacturing | Factory prefabricated sections (10-30m length) |
Bridge Configurations
- Single box steel beam bridge (3 lanes or width to span ratio
- Double box steel girder bridge for wider applications
- Multi-box steel girder bridge for small spans and large widths
Technical Features
- Longitudinal rib spacing: 1.5-3m (open rib), 2-4m (closed rib)
- Transverse partition spacing: up to 20m maximum
- Support configuration: Two supports per single-box bridge for stability
Key Advantages
- Excellent strength-to-weight ratio for cost-effective long spans
- High torsional rigidity and bending resistance
- Modular prefabrication reduces on-site construction time
- Proven durability with service life of several decades
- Suitable for highway, railway, pedestrian, and cycling bridges
Quality Assurance
All manufacturing processes adhere to international standards including ISO9001, ISO14001, EN1090, and AWS D1.1 welding specifications. Hot-dip galvanization follows ISO1461 standards for corrosion protection.
Similar Products
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
ROOM 403,NO.2 BUILDING,NO.269 TONGXIE ROAD,CHANGNING DISTRICT,SHANGHAI,CHINA
Contact Person
Libby Chen