Q460 Q335 Steel Box Girder Bridge Heavy Loading Capacity Long Lifespan
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Q460 Q335 Steel Box Girder Bridge
Heavy Loading Capacity with Long Lifespan
Product Specifications
| Attribute | Value |
|---|---|
| Product Name | Steel Box-girder bridge |
| Bridge Deck | Concrete |
| Type | Girder Bridge |
| Material | Prefabricated Steel |
| Grade | Q460, Q335 |
| Wind Resistance | Class12 |
| Standard | AISI, ASTM, BS, DIN, GB, JIS |
| Installation Time | 6 months |
| Dimensions | Customized |
| Feature | Large Span |
| Lifespan | 100 years |
| Width | 10m |
| Seismic Resistance | Anti-seismic |
Structural Overview
The steel box-girder bridge features exceptional flexural and torsional stiffness with significant loading capacity. Composed of top plate (bridge panel), beam web, bottom plate, longitudinal stiffener, transverse stiffener, and diaphragm plate (cross beam), it offers superior structural integrity.
Key Construction Features
Factory welding is prioritized to ensure weld quality, with strict quality control measures. The top plate's lower edge incorporates vertical and horizontal stiffeners forming an orthogonal bridge panel, optimizing mechanical properties in both bridge directions while conserving steel.
Structural Variations
Single Box Design: Ideal for smaller bridge widths (3 lanes) with beam spacing of 1.5m-3m (open rib) or 2m-4m (closed rib).
Double Box Design: Recommended for wider bridges where single box dimensions become impractical for production, transportation, or installation.
Multi-box Design: Optimal for applications with small spans and large bridge widths, featuring uniformly-spaced main beams for balanced load distribution.
Structural Components
Longitudinal Beam
Reduces span of reinforced concrete bridge panels when main beam spacing is large, while improving steel bridge panel stiffness. Spacing typically limited to 3m for concrete panels.
Support Systems
Multi-box designs utilize one support per steel box. Temporary fulcrum supports with jacks are implemented for structural reinforcement during installation.
Mechanical Characteristics
Engineered to withstand bending moments and concentrated forces, with structural measures including:
- Transverse partitions to prevent distortion and lateral bending
- Stiffening ribs to maintain compression flange stability
- Reinforcement for tension flange during fabrication and installation
- Web stiffening to prevent buckling under stress
Applications & Advantages
Applications: Road, rail, and high-speed rail infrastructure projects requiring durable, long-span solutions.
Key Benefits
- Large flange width provides exceptional bending resistance
- Superior torsional stiffness for curved bridge applications
- Lightweight construction with significant steel savings
- High flexural and torsional stiffness
- Rapid installation with simplified maintenance
- Continuous beam formation capability
- Modern, aesthetically pleasing design
Evercross Steel Bridges Specifications
| Category | Specifications |
|---|---|
| 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 |
| 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 Codes | 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