Highway Steel Bridge

Highway steel bridges are bridges built with steel as the main material and are widely used in highway traffic systems. They are flexible in design, fast in construction, and have strong bearing capacity, making them suitable for various spans and terrain conditions.

Main features of highway steel bridges
High strength: Steel has high strength and can withstand large loads, making it suitable for large-span bridges.
Lightweight: Compared with concrete bridges, steel bridges have a lighter deadweight, reducing the burden on the foundation.
Fast construction speed: Steel components can be prefabricated in factories and installed on site, shortening the construction period.
Good seismic performance: Steel has good toughness and better seismic performance than concrete bridges.
Recyclable: Steel can be recycled and reused, meeting environmental protection requirements.

Main types of highway steel bridges
Beam bridges
Simply supported beam bridges: simple structure, suitable for small and medium spans.
Continuous beam bridges: suitable for larger spans, with better force performance than simply supported beam bridges.

Arch bridges
Top-bearing arch bridges: the bridge deck is located above the arch ring, suitable for mountainous areas and canyons.
Under-supported arch bridge: The bridge deck is located below the arch ring, suitable for urban landscape bridges.

Suspension bridge
Single-span suspension bridge: suitable for super-large spans, such as cross-sea bridges.
Multi-span suspension bridge: suitable for complex terrain conditions.

Cable-stayed bridge
Single-tower cable-stayed bridge: Suitable for medium spans, simple structure.
Double-tower cable-stayed bridge: Suitable for larger spans, good force performance.

Construction technology of highway steel bridges
Factory prefabrication: Steel components are prefabricated in the factory to ensure accuracy and quality.
On-site installation: On-site installation is carried out by hoisting, welding and other methods.
Quality control: Strictly control welding quality and installation accuracy.

Maintenance and management of highway steel bridges
Regular inspection: Regular structural inspection and load test.
Anti-corrosion maintenance: Regularly apply and check the anti-corrosion layer to prevent steel corrosion.
Repair and reinforcement: Timely repair and reinforce damaged parts to ensure bridge safety.