Portal Frame Steel Rigid Frame is one of the most widely used structural systems in modern prefabricated steel buildings. Engineered for strength, efficiency, and fast construction, it has become the preferred choice for architects, contractors, and project owners worldwide. With its clear-span design, reliable rigid connections, and highly customizable configurations, our portal frame solutions deliver long-term structural performance, lower total project costs, and faster occupancy—making it ideal for diverse industrial, commercial, and agricultural applications.
Clear Span & Large Open Space: Supports column-free interiors from 10m to 50m (or custom spans)，eliminating obstacles for equipment placement, goods storage, and human movement.
Strong Rigid Connections: Precision-engineered apex, eaves, and column base connections ensure stable transfer of bending moment, shear force, and axial force, with excellent seismic (up to Zone 4) and wind resistance (up to 250km/h).
Rapid Construction: 100% prefabricated components (columns, rafters, joints, purlins) are factory-produced and bolt-assembled on-site, reducing construction time by 30-50% compared to traditional concrete structures.
High Strength & Light Weight: Made of Q235/Q355 high-grade structural steel, the system offers superior load-bearing capacity (supports heavy cranes up to 50 tons) while minimizing foundation costs due to reduced dead weight.
Corrosion & Weather Resistance: Hot-dip galvanization (ASTM A123 standard) or polyurea coating provides long-term protection against rust, humidity, and extreme temperatures (-40℃ to 60℃), ensuring a service life of 30+ years with minimal maintenance.
Flexible Customization: Fully adjustable span, eave height (3m to 15m), roof pitch, crane capacity, and wall/roof cladding options (steel sheet, sandwich panel, ETFE) to match unique project requirements.
Our portal frame steel rigid frame systems have been successfully applied in over 50 countries, covering the following core scenarios:
Heavy Industry Factories: Ideal for machinery production, auto assembly, and metal processing facilities—supports overhead cranes, vibration-resistant equipment, and large-scale production lines. Example: A 30m-span portal frame workshop for an automotive parts manufacturer in Germany, with 10-ton crane capacity and sound-insulated cladding.
Light Industry Workshops: Suitable for electronics assembly, textile production, and packaging plants—offers bright, open interiors with flexible layout adjustments for production line upgrades.
Clean Workshops: Customizable with dust-proof, anti-static cladding and ventilation systems for pharmaceutical, food processing, and semiconductor manufacturing.
Distribution Centers: Column-free design maximizes storage density for pallets, containers, and bulk goods; fast construction meets urgent logistics expansion needs. Example: A 45m-span logistics warehouse for a global e-commerce company in Southeast Asia, with 8m eave height and loading dock integration.
Cold Storage Warehouses: Compatible with insulation sandwich panels and refrigeration systems, maintaining stable low temperatures (-20℃ to 0℃) for food, pharmaceutical, and chemical storage.
Container Yards & Cargo Terminals: High wind-resistance design protects against coastal or open-area weather, with durable structures for long-term outdoor use.
Exhibition Halls & Convention Centers: Large clear spans (up to 50m) create unobstructed event spaces for trade shows, conferences, and cultural activities—supports stage setups, lighting systems, and high foot traffic.
Retail Stores & Supermarkets: Flexible layout adapts to shelf arrangements and customer flow; cost-effective construction reduces investment cycles for chain store expansion.
Gymnasiums & Sports Halls: High ceiling height (up to 12m) and shock-resistant structures accommodate basketball courts, swimming pools, and fitness equipment—with noise-reducing roof panels.
Farm Storage Barns: Stores grain, feed, farm machinery, and livestock supplies—corrosion-resistant design withstands agricultural chemicals and humid environments. Example: A 20m-span barn for a grain farm in Australia, with ventilation systems to prevent moisture buildup.
Livestock Sheds: Spacious, well-ventilated structures for cattle, poultry, and sheep—easy to clean and customize with feeding troughs, watering systems, and insulation.
Greenhouses & Agricultural Processing Facilities: Supports transparent cladding for sunlight exposure and heavy equipment for crop processing.
Aircraft Hangars & Garage Facilities: Extra-large spans (up to 60m) and high load capacity accommodate airplanes, trucks, and heavy vehicles—with durable structures resistant to aircraft exhaust and mechanical impact.
Temporary & Emergency Buildings: Rapid assembly makes it suitable for disaster relief shelters, construction site offices, and temporary workshops—reusable and easy to relocate.
Energy-Related Facilities: Supports solar panel installations on roofs, wind turbine maintenance workshops, and battery storage warehouses—meets industrial safety standards for energy projects.
Portal Frame / Steel Rigid Frame
Column (H-section Steel Column)
Rafter (H-section Steel Rafter)
Eaves Connection (Column-Rafter Joint)
Apex Connection (Rafter Splice Joint)
Column Base Connection
Haunch (Eaves/Apex Haunch)
End Plate (Flush/Extended End Plate)
High-Strength Bolt (Grade 8.8/10.9)
Anchor Bolt
Stiffener (Web/Flange Stiffener)
Purlin (C/Z-section Purlin)
Wall Girt (C/Z-section Wall Girt)
Base Plate
Gusset Plate
Roof/Wall Cladding (Steel Sheet/Sandwich Panel)
Professional Engineering Support: In-house team of structural engineers provides custom design, load calculation, and shop drawings (compatible with AISC, Eurocode, BS, GB standards) to meet local building codes.
Strict Quality Control: ISO 9001-certified production process, with material testing (ultrasonic, tensile) and dimensional inspection for every component.
Turnkey Solutions: From design, fabrication, and delivery to on-site installation guidance—one-stop service reduces coordination costs for global clients.
Stable Supply Chain: Annual production capacity of 50,000 tons, with long-term partnerships with steel mills to ensure on-time delivery (25-45 days lead time).
Cost-Effective Pricing: Factory-direct sales eliminate middlemen, with competitive quotes for both standard and custom projects.
After-Sales Service: 24/7 technical support, maintenance guidance, and spare parts supply for global projects.
Whether you’re planning a manufacturing workshop in Europe, a logistics warehouse in Asia, an agricultural barn in Africa, or a commercial hall in the Americas, our Portal Frame Steel Rigid Frame systems combine structural safety, economic efficiency, and construction speed to bring your project to life. We adhere to international standards, prioritize customer needs, and deliver reliable solutions that stand the test of time and environment. Contact us today for a free design consultation, detailed quotation, and technical proposal tailored to your project!
Address
No. 666, Huaishuihe Second Road, Jimo District, Qingdao City, Shandong Province, China
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