Steel Cable Suspension Bridge with 1000m+ Span Capacity | Three-Span Design for Seismic Resistance & Heavy Loads
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
Steel Cable Suspension Bridge Overview
Steel cable suspension bridges are engineered to span distances exceeding 1000 meters without intermediate supports, making them ideal for crossing wide rivers, deep valleys, and expansive bodies of water. These structures consist of essential components including bridge towers, main cables, slings, stiffening beams, anchors, and saddles.
Structural Components & Load Characteristics
The load distribution follows a systematic path: from slings to main cables, then to anchors, piers, and towers. Both main cables and stiffened beams share the load-bearing responsibility under external forces.
Main Cable Systems
As the primary load-bearing element, main cables experience deformation under load, directly influencing bridge internal forces and structural behavior. Two main cable types are employed:
- Wire Rope Main Cable: Constructed by twisting wires into strands and strands into ropes, typically using 7-strand configuration for smaller spans
- Parallel Wire Bundle Main Cable: Utilizes prefabricated parallel steel wire strands (PPWS method) to accelerate construction, available in pointed and flat-top configurations
Bridge Tower Design
Bridge towers support vertical loads and come in various structural forms:
- Mechanical Types: Rigid tower (minimal horizontal displacement), flexible tower (significant horizontal displacement), and rocking column tower (for smaller spans with hinged base)
- Cross-Bridge Forms: Truss type, rigid frame type, and mixed type structures
Stiffening Beam Varieties
Stiffening beams ensure vehicle stability and provide structural stiffness, primarily resisting bending forces. Available types include:
- Steel truss beams
- Steel box beams
- Concrete beams
- Steel-concrete composite beams
Bridge Classification & Specifications
Span Configuration
- Single-span suspension bridge
- Three-span suspension bridge
- Four-span suspension bridge
- Five-span suspension bridge
Anchoring Systems
Two primary anchoring methods determine how main cable tension is managed:
- Ground Anchorage: Transfers tension to foundation via gravity or tunnel anchors
- Self-Anchoring: Directly transmits main cable tension to stiffening beams
Construction Methodology
Suspension bridge construction follows a systematic five-step process:
- Foundation construction for bridge towers and anchors
- Tower and anchor body construction with saddle installation
- Cable system installation including main cable erection
- Stiffened beam segment hoisting and assembly
- Bridge deck and ancillary works completion
Protection Systems & Durability
Concrete Structure Protection
- Increased concrete protective layer thickness
- High-performance durable concrete formulations
- Protective coatings and sealing layers
- Enhanced reinforcement materials and corrosion inhibitors
- Cathodic protection systems
Steel Structure Protection
- Advanced paint coating systems
- Thermal spray zinc/aluminum alloy coatings
- Weathering steel applications
- Environmental improvement measures
Technical Advantages
Large Span Capacity: Optimal for spans exceeding 1000 meters
Seismic Performance: Excellent earthquake resistance capabilities
Structural Efficiency: Tension-based design for optimal load distribution
Construction Speed: Prefabricated components enable rapid assembly
Evercross Steel Bridges Specifications
| Parameter | 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 |
| Certifications | ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP |
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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