COC Certified Cable Stayed Steel Bridges 10-300M Span with AASHTO HL93 Loading & S355JR Steel Grade
A cable-stayed bridge, also known as a diagonal bridge, features a structural system where the main beam is directly supported by multiple cables anchored to bridge towers. This system consists of three main components: pressurized towers, strained cables, and the bent beam body.
- Concrete structure, steel-concrete combination structure, or steel structure
- Beam height typically 1/50 to 1/200 of span length
- Concrete structures (most common)
- Steel-concrete combination structures
- Steel structures
Constructed from high-strength materials including high-strength steel wire or steel strand, arranged in fan-like patterns extending from towers to bridge deck.
Ideal for crossing larger rivers with main spans typically exceeding 600 meters.
Suitable for small to medium-sized rivers and urban channels with main spans generally under 400 meters.
Includes three-tower four-span and multi-tower configurations, suitable for spans requiring multiple support points.
- Single Column Type: Simple structure suitable for single-plane cable-stayed bridges
- A-Shape: Enhanced structural stability
- Inverted Y Type: High stiffness along bridge axis
- Single Cable Plane: Requires box sections with high torsional stiffness
- Vertical Double Cable Plane: Resists torque through cable axial forces
- Diagonal Double Cable Plane: Excellent wind resistance for spans over 600 meters
| Material Type | Economic Span Range | Application |
|---|---|---|
| Prestressed Concrete Beams | Up to 400 meters | Concrete Cable-Stayed Bridges |
| Steel-Concrete Composite | 400-600 meters | Composite Beam Cable-Stayed Bridges |
| All Steel Main Beam | 600+ meters | Steel Cable-Stayed Bridges |
| Hybrid Construction | 600+ meters | Hybrid Cable-Stayed Bridges |
| Parameter | Specification |
|---|---|
| Design Spans | 10M to 300M Single Span |
| Loading Capacity | AASHTO HL93, HS15-44, HS20-44, HS25-44, NATO STANAG MLC80/MLC110 |
| Steel Grade | EN10025 S355JR, ASTM A572 GR50/GR65, GB1591 GB355B/C/D/460C |
| Welding Standards | AWS D1.1/D1.5, AS/NZS 1554 |
| Galvanization | ISO1461, AS/NZS 4680, ASTM-A123 |
| Certifications | ISO9001, ISO14001, ISO45001, EN1090, COC |
- Reduced beam dimensions with increased crossing capacity
- Superior wind stability compared to suspension bridges
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