Service Life of Main Materials

1. Aluminum Alloy Frame

· Material Characteristics: High-strength aluminum alloy (such as 6061/T6) is used, featuring light weight, corrosion resistance, and impact resistance.

· Normal Service Life:

· Indoor or Dry Environment: 20-30+ years (50 years with proper maintenance).

· Outdoor Open Environment: 15-25 years (affected by UV rays, humidity, salt spray, etc.).

· Coastal or High-Corrosion Areas: 10-15 years (requires additional anti-corrosion treatment).

· Influencing Factors:

· Surface treatment processes (e.g., anodizing, powder coating): An anodized film thickness of ≥10μm can extend corrosion resistance.

· Structural design rationality (e.g., stress concentration points, drainage systems).

2. Tent Fabric (Cover Material)

· Common Materials: PVC-coated fabric, PVDF membrane, PTFE membrane (glass fiber + polytetrafluoroethylene).

· Service Life:

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· Characteristic Differences:

· PVC tent fabric: Low cost but poor weather resistance; requires regular cleaning to prevent mildew.

· PTFE membrane: Strong self-cleaning and anti-aging properties, but high cost; suitable for high-end scenarios.

3. Connection Fittings

· Materials: Stainless steel (e.g., 304/316), high-strength steel (galvanized treatment).

· Service Life:

· Stainless steel fittings: 15-20 years (outdoor environment), with excellent corrosion resistance.

· Galvanized steel fittings: 8-12 years (prone to rust; regular inspection of the anti-corrosion layer is required).

· Key Components: Wear-prone parts such as bolts, fasteners, and pulleys require regular lubrication or replacement.

4. Foundation Components (Anchors, Counterweights)

· Anchors: Steel ground stakes or concrete foundations, with a service life consistent with the building (≥50 years); require anti-loosening and anti-rust measures.

· Counterweights: Concrete blocks or metal counterweights have no clear service life limit but need protection from physical damage.

II. Key Measures to Extend Service Life

1. Environmentally Adaptive Design

· Wind and Earthquake Resistance: Design the structure according to local climate conditions (e.g., reinforce frame connections for 10-level wind resistance).

· Anti-Corrosion Treatment: Use thickened anodized or stainless steel frames in coastal areas, and select salt-spray-resistant tent fabrics.

2. Regular Maintenance

· Frame Inspection: Clean the aluminum alloy surface annually, and check for cracks in welds and loose bolts.

· Tent Fabric Maintenance:

· Clean drainage grooves before the rainy season to prevent water accumulation.

· Clean the tent fabric with a neutral detergent every 2-3 years to remove dust and chemical contaminants.

· Fitting Replacement: Inspect galvanized fittings for corrosion every 5 years, and replace severely worn bolts and pulleys promptly.

3. Proper Usage Guidelines

· Avoid Overloading: Never stack heavy objects on the tent roof or hang equipment exceeding the design load.

· Extreme Weather Response: Remove tent fabrics or take reinforcement measures before typhoons or blizzards to reduce structural loads.

III. Service Life References for Different Application Scenarios