1. Key differences in material properties
The core difference between bridges and steel structures lies in material selection:
The steel structure uses steel as a single base material and is formed by welding or bolting.
Bridges include a variety of materials, including galvanized steel plates, aluminum alloys and even engineering plastics.
Although steel bridges contain steel elements, they usually use a thin plate stamping process, which is significantly different from the rolled profiles of heavy steel structures.
2. Division of application scenarios
The functional positioning of the two determines the attribute differences:
Bearing capacity: Industrial steel structures take load-bearing as their core function, while bridges focus on cable support and protection.
Installation method: The steel structure requires professional welding or high-strength bolt fixation, and the bridge frame is mostly modular and quickly assembled.
Protection requirements: Bridges generally require corrosion-resistant treatment, while steel structures pay more attention to the optimization of mechanical properties.
3. Boundaries of industry cognition
There are intersection zones in actual projects:
Reinforced steel bridges used in special scenes may have some characteristics of steel structures
However, industry practice still classifies bridges as electrical equipment rather than architectural steel structures.
In the procurement classification system, bridges and cable accessories are usually both electrical supporting products.
