Steel Bridge Series – Heavy Steel Structure Bridge

High Strength-to-Weight Ratio
Fabricated from S355JR, S460ML, or weathering steel (Corten A/B), our bridges support heavy traffic loads (HS-25, HL-93, Eurocode 1) with less dead weight than concrete alternatives.
Modular & Prefabricated Design
Girder segments, truss modules, and bolted connections are fully prefabricated in ISO-certified shops. On-site assembly is up to 40% faster than conventional cast-in-place methods.
Superior Corrosion Protection
Multi-layer coating system (Zn/epoxy/polyurethane) conforming to ISO 12944 C5‑M for aggressive environments. Optional weathering steel eliminates painting requirements over time.
Seismic & Fatigue Resistance
Optimized connections (fatigue class detail 90–125) and ductile behavior ensure reliable performance under dynamic traffic, wind, and seismic events.
Sustainable Lifecycle
Over 98% of steel is recyclable at end of life. Low-carbon manufacturing and extended service life (≥80 years) reduce total environmental footprint.
Low Maintenance
Weather-resistant surfaces and accessible inspection points minimize lifetime upkeep costs. Modular design allows simple replacement of components.

Product Details

1. Product Overview
The Steel Bridge Series is a premium range of prefabricated steel bridges designed for rapid deployment and exceptional structural integrity. Utilizing high-strength, weather-resistant steel alloys, these bridges serve as the backbone for modern infrastructure—from highway flyovers and railway crossings to rural access roads and heavy industrial haulage. Our modular engineering approach guarantees a perfect balance of light weight, high load capacity, and long service life (exceeding 80 years).

2. Core Advantages

High Strength-to-Weight Ratio: Achieves superior span capabilities without the need for massive substructures, reducing foundation costs.
Rapid Installation: Prefabricated components are bolted or welded on-site, cutting construction time by up to 40% compared to concrete.
Corrosion Resistance: Equipped with advanced anti-corrosion coating systems (ISO 12944) or optional Weathering Steel (Corten), ideal for humid, coastal, or industrial environments.
Seismic Performance: Engineered ductility and energy dissipation make this bridge ideal for earthquake-prone zones.
Eco-Friendly: Steel is 98% recyclable; manufacturing processes are designed to minimize carbon footprint.

3. Technical Specifications (Standard Range)

Feature	Specification
Span Length	20m to 120m (Single span); Multi-span continuous up to 300m
Steel Grade	S355J2+N / S460ML / ASTM A588 (Corten)
Bridge Type	Plate Girder, Warren Truss, Box Girder, Arch Hybrid
Load Capacity	AASHTO HL-93, HS-25, Eurocode LM1 (Custom industrial loads available)
Coating System	ISO 12944 C5-M (High durability: 30 years protection)
Width Options	4m to 18m (Customizable for multi-lane or rail)
Fatigue Class	Detail category 90-125

4. Applications

Transportation: Highways, expressways, railway overbridges, and urban flyovers.
Industry: Mining haul roads, conveyor crossings, and heavy equipment access.
Public Works: Pedestrian bridges, cycle paths, and greenway connectors.
Emergency/Military: Modular Bailey bridges for disaster relief.
Ports & Marine: Saltwater-resistant bridges for docks and terminals.

5. Why Choose Our Steel Bridges?

Precision Fabrication: CNC cutting and robotic welding ensure millimetre-perfect assembly.
Global Standards: Certified under EN 1090 EXC4, AISC, and ISO 3834.
Turnkey Solution: We provide design, fabrication, coating, shipping, and technical manuals for local installation.
Cost-Effective Lifecycle: Low maintenance costs and easy spare part replacement.