What Steel Structures Are Used in Gas Stations

The types of steel structures commonly used in gas stations are primarily selected based on functional, aesthetic, and economic needs. The following is a brief summary of common types and their applications:

1. Lightweight Steel Structures (H-beams, Square Steel Tubes)
   • Uses: Primarily used for gas station canopies and the main frame of station buildings.
   • Features:
     • H-beams: High load-bearing capacity, suitable for large-span canopies, often used as main beams or columns.
     • Square Steel Tubes: Lightweight, easy to process, often used for secondary beams or decorative components.
   • Advantages: Fast construction speed, moderate cost, suitable for standardized design.
   • Examples: Sinopec and PetroChina gas station canopies often use H-beam frames.
2. Steel Truss Structures
   • Uses: Suitable for extra-large span canopies or gas stations with special shapes.
   • Features: Composed of steel members forming a triangular frame, high stability, suitable for complex load conditions.
   • Advantages: High rigidity, excellent wind and seismic resistance.
   • Examples: Commonly used in gas stations in large highway service areas.
3. Steel Space Frame Structures
   • Uses: Used for the canopies of extra-large gas stations or multi-functional integrated stations.
   • Features: A spatial grid formed by connecting multiple steel members through nodes, with strong integrity.
   • Advantages: Suitable for extra-large spans, low material consumption, and high space utilization.
   • Examples: Some newly built large gas and gas filling stations use space frame structures.
4. C-shaped Steel / Z-shaped Steel (Purlin System)
   • Uses: As a secondary structure for canopies or walls, supporting roof panels or wall panels.
   • Features: Lightweight cold-formed thin-walled steel, easy to install, often used in conjunction with the main steel frame.
   • Advantages: Good economy, suitable for small and medium-sized gas stations.

Materials and Treatment

• Common Materials: Q235B, Q355B steel (compliant with national standard GB/T 1591), high strength, corrosion resistance.
• Surface Treatment:
  • Hot-dip Galvanizing: Enhances corrosion resistance, suitable for oil and gas environments.
  • Fire Retardant Coating: Meets the fire protection requirements of the "Technical Standard for Automobile Gas Filling and Hydrogen Refueling Stations" (GB50156-2021).
• Connection Method: High-strength bolt connection or welding to ensure structural stability.