Steel Structure Highway

Description

The Steel Structure Highway System is an engineering-grade steel solution designed for highway bridges, elevated roads, viaducts, overpasses, traffic gantries, guardrail systems, pedestrian bridges, and other transportation infrastructure.
Using premium grades such as Q355, Q420, Q460, S355, S460, ASTM A36, A572, the system provides outstanding load-bearing capacity, fatigue resistance, and long-term durability, meeting the demands of heavy traffic, harsh environments, and strict international highway standards.
The structure is prefabricated, modular, and suitable for rapid construction, making it ideal for modern infrastructure development and long-span projects.

Product Attributes

Trade Information

● Unit of Measurement: Ton

● Price Range: 1300—3000 USD/T.The specific price needs to be provided with drawings and calculated based on material requirements, processing requirements, paint requirements, etc. 

● Minimum Order Quantity (MOQ): 100 Tons

Key Advantages

① Excellent Load-Bearing & Structural Stability
Designed for heavy trucks, high traffic volume, and long-term service.
Superior bending resistance, fatigue strength, and vibration performance.
Suitable for long-span steel bridges and multi-span viaducts.

② Fast & Efficient Construction
All key components precut and prefabricated in the factory.
40–60% faster installation than concrete structures.
Minimal impact on existing traffic during construction.

③ Advanced Anti-Corrosion Protection
Hot-dip galvanizing (HDG) or multi-layer paint system available.
Corrosion-resistant in coastal, desert, or industrial regions.
Service life up to 50+ years.

④ Flexible Design for Various Highway Applications
Support for steel plate girders, box girders, truss structures, arch forms, and composite decks.
Can be customized for straight, curved, or inclined highway geometry.
Compatible with noise barriers, lighting poles, and sign gantries.

⑤ International Standard Compliance
Designed according to global highway norms:
AASHTO LRFD
EN 1993 (Eurocode 3)
ASTM / BS
AS/NZS 5100

Manufacturing Process & Technical Features

① Precision Fabrication
CNC plasma/laser cutting
Robotic welding & SAW welding
Full penetration welds for key members
Ultra-tight tolerances for bridge accuracy

② Strict Quality Control
Raw material mill certificates
UT / MT / RT / VT inspections
Compliance with ISO 3834 & AWS D1.1

③ Surface Treatment & Coating
Sandblasting to Sa2.5
Epoxy zinc-rich primer
Polyurethane topcoat
Optional hot-dip galvanizing (85–120 µm zinc layer)

④ Efficient Packaging & Transportation
Modular components designed for containers or bulk shipments
Safe steel-rack packaging
On-site installation supervision available
ional Paint.
Hot-dip galvanizing thickness: ≥85–120 µm.

Technical Specifications

Application

Highway & expressway bridges
Multi-span viaducts
Urban overpasses
BRT & railway elevated sections
Traffic gantries & signage structures
Noise barrier steel frames
Pedestrian bridges on highways
Roadway protection & support systems

Why Choose Us

20+ years expertise in steel structure engineering
Certified with CE, EN1090, ISO 3834, ASME
Advanced fabrication: CNC, SAW, robotic welding
Full-service: design + fabrication + delivery + installation
Strong export capability (projects in Middle East, Europe, Africa, Asia)
Reliable quality & competitive pricing for large infrastructure projects

Our Factory

Raw material storageMaterial cuttingAutomatic Welding

Manual weldingWeld seam treatmentDeep processing

PaintingDeliveryPackaging