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Heavy Duty Welded Bent Metal Low Carbon Structure Transportation Project Steel Bridge
Product Summary
Heavy-duty steel bridge with 50-year lifespan, CE-certified, wind-resistant up to 121+ mph. Modular prefabrication enables fast assembly and cost savings. Custom spans and loads available for industrial and infrastructure projects.
Product Custom Attributes
Fabric Weight::
11150g
Software Used::
STAAD-Pro RamConnection Midas/Gen
Warranty::
3 Years
Usage::
Industrial, Commercial, Residential Buildings
Main Structure::
Welded Or Hot Rolled Steel
Frame Material::
Carbon Structure Steel
Assembly Method::
Bolted Or Welded
Structure::
Steel Frame
Material::
Steel
Production Capacity::
20000 Tons Per Year
Structure Type::
Frame
Roof Cladding::
Steel Sheet + Sandwich Panel
Steel Material::
Q235 Q345 H,C,Z Section Steel
Width::
Single Lane 4.2m, Double Lane 7.35m
Color::
Red, White, Blue, Grey
Highlight::
Heavy Duty steel truss bridge
,Low Carbon steel truss bridge
,Q235 prefab metal building construction
Basic Properties
Place of Origin:
China
Brand Name:
JinHongTong
Certification:
CE (EN 1090)，ISO 9001 / 14001 / 45001，AISC Standard，SABER / SASO / SABS，EN 10204 3.1 Material Certificate，ISO 3834 Welding Quality System
Trading Properties
Minimum Order Quantity:
100 ㎡
Price:
999
Packaging Details:
Waterproof plastic film + steel strip bundling + wooden pallets.Seaworthy export packing.
Delivery Time:
30 work days
Payment Terms:
L/C,D/A,D/P,T/T,Western Union
Supply Ability:
Annual production capacity: 20,000 ㎡ - 30,000 ㎡ of steel structure buildings.
Product Description
Heavy-duty Welded Bent Metal Low-carbon Structure Transportation Project Steel Bridge
Our steel structure bridge is manufactured with high-strength heavy steel materials and advanced welding technology. Featuring high structural rigidity, strong bearing capacity, seismic resistance and wind resistance, it adapts to complex terrain and harsh natural environments. Professional anti-corrosion, rust-proof and weather-resistant treatment greatly extends the service life. With fast on-site installation, low comprehensive maintenance cost and flexible design, our steel bridges are widely used for highway crossings, river spans, municipal engineering and industrial transit. Customized span, load standard and overall solution are available to meet diverse engineering project requirements.
Technical Specifications
| Span Range | 50-160 M |
| Altitude Band | 15-50 M |
| Anti-corrosion Treatment | Galvanizing, spraying zinc, and spraying anti-corrosion paint |
| Fire-protection Rating | Higher than or equal to Level 2 |
| Load Type | Enclosure materials, equipment, cranes, local natural conditions |
| Material Intensity | S355/Q235/Q355 |
| Tolerance | ±1 |
| Standard | Chinese Standard/European Standard |
| Process Mode | Bending, welding, cutting, assembling, shot blasting and painting |
| Drawing Design | SAP2000/AutoCAD/PKPM/3D3S/TEKLA |
| Certificate | CE |
| Life Length | 50 years |
Packaging and Delivery
| Port | Qingdao, TianJin, and HeBei |
| Delivery Cycle | 15-60 Days |
| Marketing Unit | Square meter |
| Supply Capacity | 10,000 tons/month |
Key Features
50-Year Lifespan & Long-Term Durability
High-quality structural steel (Q355q, Q420q, EN S355/S420 series) with excellent toughness and anti-fatigue performance. Professional anti-corrosion treatment (hot-dip galvanizing + epoxy zinc-rich primer + fluorocarbon topcoat) per ISO 12944 standards, ensuring 50-year service life.
121+ Mph Wind Resistance
Optimized modular truss structure with triangular framework design effectively distributes wind load. Wind resistance reaches 121+ Mph (195+ km/h), meeting requirements for hurricane-prone areas with 1.2x safety factor.
Modern Design & Modular Prefabrication
Modern minimalist design with sleek appearance. Modular prefabrication enables factory standardized production (error ≤±1mm) and reduces construction period by 40%-60% compared to traditional methods.
High Efficiency & Cost-Saving
Modular design allows flexible combination and expansion, reducing material waste and transportation costs. Lightweight structure minimizes foundation investment and saves labor costs.
Core Technology
- Modular Truss Structure Technology: Triangular truss framework evenly distributes tensile and compressive forces, suitable for spans up to 91 meters with standardized interfaces for seamless assembly.
- Precision Prefabrication & Welding Technology: Advanced CNC equipment with welding compliant to EN ISO 15614 and AWS D1.5 standards. 100% welding qualification rate with component precision meeting EN 10210/EN 10219 standards.
- Anti-Corrosion & Durability Enhancement: Three-layer anti-corrosion system (hot-dip galvanizing + epoxy zinc-rich primer + fluorocarbon topcoat) with ≥80μm galvanizing layer and Z-direction performance steel.
- Wind Resistance Optimization: Streamline truss section and aerodynamic diversion device reduce wind resistance and vortex-induced vibration, ensuring safe operation under extreme conditions.
International Standards & Key Parameters
| Parameter Category | Key Specifications | International Standards |
|---|---|---|
| Certification | CE Certification (EXC3 Execution Class), ISO 9001, AWS D1.5 | EU CPR (EU 305/2011), EN 1090-1/2, ISO 9001, AWS D1.5 |
| Lifespan | 50-Year Design Lifespan | ISO 12944 (Corrosion Protection), EN 1090 |
| Wind Resistance | 121+ Mph (195+ km/h), Flutter Critical Wind Speed ≥1.2*Design Wind Speed | Wind Load Calculation Standards (GB/T 50009, AASHTO LRFD) |
| Steel Material | Q355q, Q420q, EN S355/S420 Series, Z15/Z25/Z35 Z-direction Performance | GB/T 714, EN 10025-2/-3/-4, ASTM A709 |
| Modular Specifications | Span: 10-91m; Module Weight: 500-5000kg/unit; Section Thickness: 8-30mm | EN 10210/EN 10219, ASTM A578 |
| Welding Standard | Full Penetration Welding, Welding Qualification Rate 100% | EN ISO 15614, AWS D1.5, EN ISO 9606 |
| Anti-Corrosion | Three-Layer Anti-Corrosion System, Galvanizing Layer ≥80μm | ISO 12944, ISO 2063, ISO 1461 |
Application Scenarios
Our prefabricated modular steel truss bridges are widely used in various infrastructure projects, including highway and railway crossings, urban overpasses, cross-river and cross-valley bridges, industrial zone passages, emergency rescue bridges, and remote area traffic links. They are especially suitable for areas with strong wind, high humidity, and complex construction environments.
Manufacturing Process
- Processing follows international standards (AISC 360, Eurocode 3, EN 1090) ensuring structural stability
- Strict raw material inspection including material certificate verification, size measurement and appearance inspection
- Lofting, marking and cutting performed by numerical control equipment for precise dimensions
- Straightening and correction (thermal or mechanical) to ensure component flatness
- Drilling and punching processes to meet assembly requirements
- Professional welding (submerged arc welding, gas shielded welding) with UT/MT non-destructive testing
- Secondary straightening and grinding to correct deformation and remove burrs
- Shot blasting to Sa2.5 derusting grade for enhanced coating adhesion
- Clear component marking, proper packaging and factory delivery
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