Outdoor LED Display Steel Structures – Engineered for Strength, Built to Last

At ZHM Huawu Steel, we specialize in the design, fabrication, and installation of outdoor LED display steel structures. Our engineering approach is grounded in rigorous compliance with Chinese national standards, ensuring that every support frame, billboard mast, and mounting system delivers exceptional structural integrity, weather resistance, and long-term service life.

Design Standards & Structural Philosophy

Every outdoor LED display project begins with a comprehensive structural analysis. Our designs adhere to the following key standards:

●GB 50009-2001 (2006) – Load Code for the Design of Building Structures
●GB 50017-2003 – Code for Design of Steel Structures
●GB 50011-2001 – Code for Seismic Design of Buildings
●JGJ 81-2002 – Technical Specification for Welding of Steel Structure of Building
●GB 50205-2001 – Code for Acceptance of Construction Quality of Steel Structures

Wind load is a critical design consideration for outdoor signage. We calculate using a basic wind pressure of 0.55 KN/m², with structural loads derived from:

●Dead load (permanent): 0.6 KN/m (steel frame self-weight automatically calculated by structural software)
●Live load (variable): 0.5 KN/m

This load combination ensures that our single-column, double-column, and wall-mounted LED display structures remain stable under extreme weather conditions, including typhoon-force winds.

Material Selection – Quality from the Ground Up

All primary steel components are fabricated from Q235B carbon structural steel, supplied as square/rectangular hollow sections and hot-rolled channel steel. This material offers an optimal balance of strength, weldability, and cost-effectiveness for outdoor structural applications.

We source materials that fully comply with:

●GB/T 700-2006 – Carbon Structural Steels
●GB/T 1591-2018 – High Strength Low Alloy Structural Steels
●GB/T 8162-2018 – Seamless Steel Tubes for Structural Purposes

Every batch of steel is verified with mill test certificates prior to fabrication, ensuring traceability and material integrity.

Anti-Corrosion Protection – A 15-Year Guarantee

Outdoor exposure demands superior corrosion protection. Our standard anti-corrosion system is engineered for a minimum service life of 15 years and includes:

●Surface preparation: Abrasive blast cleaning to SA 2.5 (near-white metal finish) per GB 8923-1988 – Rust Grades and Preparation Grades of Steel Surfaces

●Primer: Two coats of red lead anti-corrosive primer, achieving 100μm dry film thickness
●Topcoat: Alkyd enamel finish, providing an additional 50μm protective layer

This multi-layer coating system effectively resists UV degradation, moisture ingress, and atmospheric corrosion, making it ideal for coastal and high-humidity environments.

Fire Protection

For projects requiring fire-rated structural protection, we apply coatings in accordance with GB 14907-2018 – Fire Resistive Coating for Steel Structure and CECS 24:90 – Regulation of Application Technology of Fire Resistive Coating for Steel Structure, ensuring passive fire protection where specified.

Precision Fabrication & Certified Welding

All steel components are factory-fabricated under controlled conditions, ensuring dimensional accuracy and consistent quality. Our fabrication process strictly follows GB 50205-2001 requirements for:

●Lofting and layout
●Material marking and cutting
●Straightening and forming
●Edge preparation and joint detailing
●Hole drilling and assembly

Welding is performed using manual shielded metal arc welding (SMAW) with electrodes conforming to GB/T 5117-1995 (Carbon Steel Covered Electrodes) and GB/T 5118-1995 (Low Alloy Steel Covered Electrodes). Critical connections utilize three-sided fillet welds with continuous corner welding to eliminate stress concentration points.

Quality Assurance & Non-Destructive Testing

Quality is not inspected—it is engineered. Our quality control program includes:

●Ultrasonic testing (UT) per GB/T 11345-1989 – Method for the Manual Ultrasonic Testing and Classification of Testing Results for Steel Welds

●Visual inspection of all weld profiles and surface finishes
●Dimensional verification against approved fabrication drawings

This rigorous inspection regime ensures that every weld and connection meets or exceeds the acceptance criteria of GB 50221-1995 – Code for Inspection and Evaluation of Structural Steel Engineering Quality.

Installation – Engineered for Site Conditions

Our installation teams follow site-specific erection plans that account for:

●Foundation design and anchor bolt placement
●Crane lift planning and rigging
●Sequential assembly and temporary bracing
●Final alignment and torque-tightening of bolted connections

Post-installation, we conduct a comprehensive structural sign-off, verifying that the completed structure meets all design parameters and is ready for LED panel mounting.

Why Choose ZHM Metal Engineering?

Code-compliant engineering – Every project designed to GB standards

Integrated capability – Design, fabrication, coating, and installation under one roof
Proven durability – 15-year anti-corrosion systems for outdoor longevity
Quality focus – Certified welding, NDT inspection, and full material traceability
Custom solutions – Single-pole, double-pole, wall-mounted, and rooftop configurations available

From initial structural modeling to final site handover, ZHM Metal Engineering delivers outdoor LED display steel structures that combine technical excellence with practical reliability. Contact us to discuss your next digital signage project.

ZHM Huawu Steel – Steel Structures That Stand the Test of Time

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▲01 Single column LED Display Structures

▲02 Double Column SMD LED Screen Structures For Ads

▲03 Outdoor Exposure LED Supporting Frame Steelworks

▲04 Wall Mounted LED SMD Panel Module Sub frame Structures

▲05 Straight Curved LED SMD Module

▲06 Curved LED SMD Module Cabinet Pieces

▲07 Electric LED Module Internal Views

▲08 Outdoor LED Advertising Display Steel Structure

Why ZHM Huawu Metal Outdoor LED Display Steel Structures ?

Reliable and Customized Designs	Cutting Edge Designing Process	Free Online Price System	Easy Bolt-by-number Assembly
Over Two Decades of Experience	Value For Money	Unmatched in Quality and Craftmanship	Excellent Customer Service

Would you like to see more information and images of ZHM Huawu Steel's Metal Outdoor LED Display Steel Structures ? Visit our Photo Gallery.

HOW CAN WE HELP YOU?

ZHM’s world-class team — together with our raw material suppliers and subcontractors — works to solve your most challenging design, engineering, farbrication or construction issues.

Contact ZHM by telephone at +86 135-8815-1981 (wechat and whatsapp) or send us your questions via email to info@zhmsteelworks.com