OEM Steel Box Girder Bridge with 10-300m Spans and 12-30mm Plate Thickness for Quick Installation
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Steel Box Girder Bridge Overview
Professional steel box girder bridges designed for quick installation and easy maintenance, featuring prefabricated components with thickness ranging from 12-30mm for main plates and 10-20mm for secondary plates.
Structural Components
The steel box-girder bridge consists of top plate (bridge panel), beam web, bottom plate, longitudinal stiffener, transverse stiffener, and diaphragm plate (cross beam). Manufacturing typically involves factory fabrication of sections (10-30m lengths) followed by on-site welding.
Orthotropic Steel Bridge Panels
Longitudinal rib sections feature both open and closed forms, typically using inverted T-shape cross-sections with spacing determined by longitudinal rib span requirements.
Bridge Structural Types
Single Box Steel Beam Bridge
Ideal for bridges with widths up to 3 lanes or width-to-span ratios less than 1/10. For 4-6 lanes, double width single box girder configurations are available.
Double Box Steel Girder Bridge
Suitable for wider bridges where single box dimensions become impractical for production, transportation, or installation.
Multi-Box Steel Girder Bridge
Optimal for short spans with wide bridge decks, featuring uniformly spaced main beams for even load distribution.
Technical Specifications
Longitudinal Beam Configuration
Spacing not exceeding 3m for reinforced concrete bridge panels. For steel bridge panels with closely spaced beams or transverse ribs, longitudinal beams may be omitted.
Beam Spacing Standards
With longitudinal beams: maximum 6m spacing. Without longitudinal beams: maximum 20m spacing for lateral load distribution.
Support Systems
Single-box bridges require two end supports for structural stability and torque resistance. Multi-box bridges typically use one support per steel box, with temporary jack supports for structural reinforcement.
Structural Performance & Safety
Failure Prevention Measures
Comprehensive structural measures including transverse partitions to prevent distortion, stiffening ribs to avoid compression flange instability, and reinforcement to protect against web buckling during manufacturing and installation.
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 |
| Welding Standards | AWS D1.1/AWS D1.5, AS/NZS 1554 or equivalent |
| Bolting Standards | ISO898, AS/NZS1252, BS3692 or equivalent |
| Galvanization Codes | ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent |
Key Advantages
- Light weight construction with significant steel savings
- High flexural and torsional stiffness for superior performance
- Quick installation process with easy maintenance requirements
- Suitable for forming continuous beam structures
- Novel structural design with simple, aesthetically pleasing appearance
- Large flange width providing exceptional bending resistance for long spans
- Excellent torsional stiffness ideal for curved bridge applications
- Hollow structure facilitates easy installation of ancillary facilities
Steel box girder bridges are widely used in road, rail, and high-speed rail applications, offering superior structural performance and long-term cost efficiency.
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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
ROOM 403,NO.2 BUILDING,NO.269 TONGXIE ROAD,CHANGNING DISTRICT,SHANGHAI,CHINA
Contact Person
Libby Chen