Permanent Cable Suspended Bridge Custom Steel Truss Bridge High Strength
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Permanent Cable Suspended Bridge Custom Steel Truss Bridge High Strength
| Product Name | Cable-stayed bridge |
| Material | Steel |
| Spans | Large Span |
| Type | Steel Truss Bridge |
| Usage | Permanent Bridge |
| Length / Width | Customized |
Convenient Transport and Speedy Erection Cable Stayed Bridges
A cable-stayed bridge, also known as diagonal bridge, is a structural system composed of a pressurized tower, strained cables, and a bent beam body where the main beam is directly pulled on the bridge tower with multiple cables.
Bridge Components
The cable-stayed bridge consists of three primary components:
- Main Beam: Typically constructed from concrete, steel-concrete combination, or steel structure
- Cable Tower: Primarily concrete structures, sometimes steel-concrete combination or steel
- Stay Cable: Manufactured from high-strength materials (high-strength steel wire or steel strand)
This configuration creates a continuous beam with multi-span elastic support, reducing bending moment and structural weight while significantly increasing crossing capacity.
Span Layout Configurations
1. Twin Tower Three Span
Features larger main spans, ideal for crossing major rivers.
2. Single Tower Double Span
Suitable for small-to-medium rivers and urban channels with smaller main spans.
3. Multi-Tower Multi-Span
Features increased structural flexibility, requiring careful engineering to prevent excessive deformation.
4. Auxiliary Pier and Side Lead Span
Solves issues with positive bending moments at side spans through extended lead spans or auxiliary piers.
Structural Advantages: Eliminates large supports, simplifies maintenance, provides excellent stability during cantilever construction, and offers superior overall stiffness with minimal beam deflection.
Cable Tower Design
The cable tower serves as both a structural element and aesthetic feature, requiring careful design to accommodate cable arrangement while maintaining axial compression under dead load.
Cross Bridge Direction Layouts
Options include single column, double column, door/H type, A type, and gem/inverted Y type configurations, each suited to specific cable plane requirements.
Tower Height Considerations
Tower height significantly impacts overall bridge stiffness and economy, requiring careful proportioning.
Stay Cable Arrangement
Cable Plane Positions
Three primary configurations:
- Single Cable Plane: Requires high torsional stiffness in beam sections
- Vertical Double Cable Plane: Resists torque through cable axial force
- Diagonal Double Cable Plane: Excellent wind resistance for large spans
Cable Plane Shapes
Three fundamental types:
- Radial: Large vertical support component with complex tower top anchoring
- Harp: Parallel arrangement simplifies connections but requires more cable material
- Sector: Combines advantages of both radial and harp arrangements
Cable Spacing
Modern dense cable systems (4-20m spacing) offer numerous advantages including reduced beam bending moments, simplified anchoring, and easier erection.
Structural Systems
Cable-stayed bridges can be categorized by:
- Combination of tower, beam and pier (floating, semi-floating, consolidation, rigid)
- Main beam continuity (continuous system, T-structure)
- Anchorage method (self-anchored, partial ground anchor)
Low Tower Partial Cable-Stayed System
Features mechanical properties between beam bridges and conventional cable-stayed bridges.
Stay Cable Construction
Two primary construction methods:
- Parallel wire cables with cold-cast anchors (integral installation)
- Parallel wire cables with clip anchors (dispersed installation)
Vibration Damping Solutions
Three primary methods to reduce cable vibration:
- Pneumatic control: Non-smooth cable surfaces prevent rain vibration
- Damping devices: Increase cable damping ratio
- Dynamic characteristic modification: Cable interconnections
Main Beam Functionality
The main beam serves three critical functions:
- Distributes loads to cables
- Provides axial compression resistance
- Resists transverse wind and seismic forces
Material-Specific Span Suitability
- Prestressed concrete: Economic spans
- Steel-concrete composite: 400-600m spans
- All steel: >600m spans
- Hybrid: Steel main span with concrete side spans (>600m)
Construction Methods
Primary erection techniques include support construction, push construction, rotary construction, and cantilever construction (both assembly and pouring).
Applications
Cable-stayed bridges are widely used for:
- River crossings (long-span navigation requirements)
- Road and highway bridges
- Railway crossings
Key Advantages
- Compact beam dimensions with exceptional crossing capacity
- Minimal clearance and elevation restrictions
- Superior wind stability compared to suspension bridges
- Efficient cantilever construction
Evercross Steel Bridges Specifications
| Product Line | 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 |
| Certificates | ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP |
| Welding Standards | AWS D1.1/D1.5, AS/NZS 1554 or equivalent |
| Bolts | ISO898, AS/NZS1252, BS3692 or equivalent |
| Galvanization Standards | ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent |
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Company
EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO.,LTD.
Location
10th Floor, Building 1, No. 188 Changyi Road, Baoshan District, Shanghai,China
Contact Person
Libby Chen