The steel structure of the outdoor LED display is an important part of supporting and fixing the display.
Its design, material selection, construction and later maintenance all require in-depth understanding.
The following is a detailed introduction to the knowledge that needs to be understood about the steel structure of the outdoor LED display:
Steel structure material selection
The commonly used materials for the steel structure of the outdoor LED display include square tubes, channel steels, H-shaped steels, welded round tubes, etc. Each material has its specific advantages and uses:
1. Square tube:
- Advantages: Comprehensive mechanical properties, welding properties, hot and cold processing, corrosion resistance are qualified, and have good toughness.
- Size specifications: such as 60mm*40mm*3mm, 40mm*40mm*3mm, 50mm*20mm*3mm, etc.
- Uses: Mainly used for main structure, edging structure, welded column structure, etc.
2. Channel steel:
- Advantages: According to mechanical properties, welding properties, riveting properties, hot and cold processing and corrosion resistance, channel steel has good toughness.
- Size specifications: such as 10# channel steel 100mm*48mm*5.3mm, etc.
- Use: Mainly used for main structure, welded columns, etc.
3. H-shaped steel:
- Advantages: Combined with mechanical properties, welding properties, riveting properties, hot and cold processing and corrosion resistance, it has good toughness.
- Size specifications: such as HW100*100, etc., divided into wide flange H-shaped steel (HW), middle flange H-shaped steel (HM) and narrow flange H-shaped steel (HN).
- Use: Mainly used for main load-bearing beams, welded columns, etc.
4. Welded round tube:
- Advantages: Combined with good mechanical properties and welding properties.
- Size specifications: such as Φ730*10mm and other models.
- Use: Used for columns, screen internal reinforcement, etc.
In addition, aluminum-plastic panels and stainless steel are often used as edging decorative frame materials. They have luxurious, gorgeous and colorful decorative properties, and are weather-resistant, corrosion-resistant, damage-resistant, fire-proof, moisture-proof, sound-proof, heat-insulating, and impact-resistant.
Key points of steel structure design
1. Installation and maintenance: The structural design needs to consider the convenience of installation and maintenance, such as setting up maintenance channels and cable channels.
2. Reliability: The structure is based on stability. Combined with the actual situation on site, the force bearing points are balanced, and the structural bearing capacity should be greater than 20% of the weight of the display screen itself.
3. Integrity: In addition to installing the screen itself, the LED display screen structure also includes other additional equipment, such as audio, exhaust fans, air conditioners, etc., as well as the setting of decorative edging and outdoor lightning protection facilities.
4. Flatness: The flatness of the structure directly affects the flatness of the screen surface after the display screen is installed, and has an important impact on the display effect of the display screen. Therefore, it is necessary to ensure the complete combination of the structural frame and the installation box.
Steel structure construction and post-maintenance
1. Rust removal and correction: Before the steel structure is made, the components need to be rusted with manual and electric tools, and the dimensions must be carefully checked before processing. Construction can only be carried out after correction.
2. Welding: A reasonable welding sequence should be selected during construction welding, and preheating and other methods should be used to reduce welding deformation.
3. Painting: After the steel structure is completed, all steel structures need to be painted with anti-rust paint; after installation, the parts that have not been primed and the parts with repair welding, scratches, and paint peeling should be primed twice, and then painted once. Paint protection should be carried out regularly during use.
4. Structural design standards: Follow the requirements of the "Steel Structure Design Code" and the "Steel Structure Engineering Construction and Acceptance Code".
Other precautions
1. Environmental factors: The steel structure of the outdoor LED display screen needs to consider factors such as wind load, waterproofing, dustproofing, moisture-proofing, and ambient temperature to ensure the safety and stability of the structure.
2. Lightning protection measures: Due to the complex outdoor environment, lightning protection devices need to be installed on the LED display screen and buildings to prevent the large current caused by lightning from damaging the equipment.
3. Ventilation and heat dissipation: The display screen will generate heat when working, and ventilation equipment needs to be installed to cool down to ensure that the internal temperature of the screen is within an appropriate range.
In summary, the design, material selection, construction and later maintenance of the steel structure of the outdoor LED display screen need to comprehensively consider multiple factors to ensure the safe, stable and efficient operation of the display screen.