What Is a Prefabricated Steel Structure Building?

A prefabricated steel structure building is a bolt-together steel frame system in which every column, rafter, purlin, and connection plate is precision-cut, drilled, and welded in our factory — then containerized and shipped to your site for rapid assembly.

Unlike traditional on-site steel fabrication (which is slow, weather-dependent, and expensive in most countries), our approach delivers:

· 30–50% faster construction compared to conventional steel erection

· Zero on-site welding — 100% bolted connections

· Lower total project cost through factory efficiency and reduced site labor

· Consistent quality — every component passes dimensional inspection before packing

· This is not a "steel kit." This is a fully engineered structure, designed to your local wind, snow, and seismic loads.

Case｜General Aviation Service Centre, Johannesburg, South Africa (Hangar + Exhibition Hall), 3,600 ㎡

Project Location: Lanseria Airport, Gauteng Province, South Africa Project Type: Complex consisting of aircraft hangar, aviation material exhibition hall and office area Building Area: 3,600 ㎡ (2,400 ㎡ for hangar + 1,200 ㎡ for exhibition hall & office) Delivery Schedule: 55 days for design + 50 days for fabrication + 70 days for sea freight & erection

Project Background

The client is a South African general aviation distributor, planning to build a service centre at Lanseria Airport integrating aircraft display, maintenance & custody, and aviation material storage. The local South African steel structure codes adopt the British standard system, with special local requirements for wind load and lightning protection.

Technical Solution

• Hangar: Large-span box steel truss, clear span of 45m × clear height of 12m, intermediate column-free
• Steel frame + glass curtain wall + aluminium alloy roofing for exhibition hall and office section
• 75mm rock wool sandwich panels for enclosure, colour scheme complying with the airport’s overall visual guidelines
• Lightning strip system installed on roof, designed in accordance with SANS 62305 standard
• Hangar floor designed for uniformly distributed live load of 5 t/㎡ (with verification for concentrated load from aircraft wheel pressure)

Project Highlights

The combination of large-area floor-to-ceiling glass and steel frame in the exhibition hall imposes extremely high requirements on installation precision. We adopted 3D laser scanning for pre-assembly at the factory stage to ensure the deviation between on-site curtain wall keels and steel structures is controlled within ±3 mm.

Customer Reviews

"The SAISC award caught us by surprise — we entered it almost as an afterthought. The judges specifically mentioned the facade integration between the steel frame and the full-height glazing. What they didn't see was the five rounds of shop drawings your team went through to get those tolerances right. Our architect initially wanted a local steel contractor because he 'didn't trust overseas fabrication'. After visiting the factory via video call and seeing the 3D laser scan pre-assembly of the first bay, he withdrew his objection. He is now specifying your company by name on his other projects."

Frequently Asked Questions

· How long does it take from order to delivery?

· Typical timeline: design & engineering 15–25 working days + fabrication 25–50 working days + ocean freight (varies by destination; e.g., 22 days to West Africa, 30 days to Europe, 35 days to East Coast North America). Most projects arrive on site within 10–14 weeks of order confirmation.

· Can you handle the structural design and calculations?

· Yes. Our in-house engineering team produces a complete structural package — frame analysis, connection design, foundation reaction tables, and anchor bolt layouts — referenced to your local building code. We can also coordinate with your local engineer of record for plan review and permit submission.