| Customization: | Available |
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| After-sales Service: | Online Technical Support / Onsite Installation |
| Layers: | Customized Design Solutions According to Customer |
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Capital & Scale: Registered capital of 10 million RMB, two modern manufacturing workshops spanning 50,000 square meters, and an annual production capacity exceeding 50,000 tons.
Advanced Equipment: Equipped with laser cutting machines, CNC planar drilling machines, H-beam welding-straightening integrated systems (max. cross-section depth: 1,800mm), gantry box girder welding machines, and other precision tools to tackle complex processing demands.
Leading Cold Bending Technology: H-beam cold bending with a maximum cross-section depth of 400mm, enabling customized solutions for intricate structures.
Expert Team: Our technical center includes 18 structural design and detailing specialists, supported by over 200 skilled technicians.
Certifications & Achievements: Holds the Grade II Steel Structure Engineering Contracting Qualification issued by China's Ministry of Housing and Urban-Rural Development, along with multiple patents and innovations in construction techniques and material R&D.
Process Excellence: Continuously refine manufacturing processes and advance technological innovation in steel structure production.
Intelligent manufacturing syste:Equipped with domestic leading automatic production lines (such as CNC cutting, alignment correction, robot welding, etc.), combined with BIM modeling technology to optimize the design, to ensure the accuracy of components up to millimeter, improve the construction efficiency of more than 30%.
International Certifications: Compliant with ISO 9001 (Quality), ISO 14001 (Environment), and ISO 45001 (Safety) standards, and certified by AISC (U.S.) and CE (EU), ensuring global regulatory adherence.
End-to-End Quality Control: Rigorous quality management from raw material sourcing to final delivery, guaranteeing project safety and durability.
Supply chain advantage: Relying on Shandong iron and steel industry cluster, we establish strategic cooperation with raw material suppliers and logistics enterprises to achieve rapid inventory and cost optimization, and shorten the delivery cycle by 10-15 days compared with the industry average.
EPC service capability: Provide integrated design, procurement and construction services, equipped with a professional installation team and project management system to ensure efficient landing of complex projects (such as special structures with spans of more than 50 meters).
I. Core Technical Specifications
| Parameter | Specifications |
|---|---|
| Span Range | Single span: 12-48 meters (extendable to multi-span continuous structures; max. span up to 60 meters for large spaces). |
| Eave Height | 6-30 meters (customizable based on ventilation, equipment installation, etc.). |
| Steel Material | Main structure: Q355B high-strength low-alloy steel (compliant with GB/T 1591); secondary components: Q235B. |
| Roof Slope | 5%-10% (optimizable for snow load and drainage requirements). |
| Design Loads | - Dead load: 0.2-0.5 kN/m² (includes purlins, roof panels) - Live load: 0.3-0.5 kN/m² (snow load per regional codes) - Wind load: 0.45-0.8 kN/m² (per GB 50009-2012 wind zones) - Crane load: Supports 5-50-ton overhead/beam cranes (custom corbels and bracing required). |
| Seismic Performance | Compliant with 8-degree seismic fortification (0.3g PGA per GB 50011-2010); ductile joint design enhances earthquake resistance. |
Main Frame Members
Beams and columns use H-shaped steel (hot-rolled or welded), with web heights of 200-1200 mm and flange widths of 200-600 mm.
Tapered section optimization (e.g., wedge-shaped beams) reduces steel usage by 10%-15%.
Connection Details
Beam-column joints: High-strength bolted (Grade 10.9) + end-plate welding (compliant with GB 50017-2017).
Bracing system: Cross-braced round steel ties (Φ20-Φ30) or angle steel to enhance lateral stability.
Corrosion & Fire Protection
Surface treatment: Shot blasting (Sa2.5 grade), epoxy zinc-rich primer (80μm) + fluorocarbon topcoat (40μm); salt spray resistance ≥3000 hours (suitable for coastal areas).
Fireproofing: Optional intumescent coatings (1-3 hours fire resistance per GB 14907-2018).
Lightweight & Cost-Efficiency
Single-layer portal frame steel consumption: 18-35 kg/m² (material efficiency increases with span); total cost 20%-30% lower than concrete structures.
Rapid Construction
Modular prefabrication + on-site bolted assembly; reduces construction time by 40% (Taking 5000 square meters factory as an example, according to China's production efficiency, the main installation ≤15 days).
Flexible Expansion
Supports post-construction modifications (e.g., adding ventilators, skylights) to adapt to operational upgrades.
Design Optimization: Free load analysis and structural modeling (verified via PKPM/3D3S software).
Detailed Drawings: Full set of fabrication/installation drawings (compliant with GB/T 50105-2010).
Warranty: 20-year structural warranty .
Service Scope
We undertake diverse steel structure projects, including:
Industrial & Civil Construction: Prefabricated houses, industrial plants, multi-story and high-rise buildings, smart logistics warehouses, modular residences, animal and poultry houses, breeding greenhouses, and more.
Public Facilities: School,hospital,Healthcare & Wellness Center,stadiums, convention centers, airport terminals, railway stations.
Specialized Structures: Long-span bridges, heavy industrial plants, and custom spatial structures.
Strapping and securing:
H-shaped steel main components are bound with galvanized steel strips (width ≥32mm), spacing ≤1.5m, and EPE buffer pads are added to contact points.
Ultra-long components (≥12m) are fixed by "well" shaped steel frame to avoid shipping turbulence and deformation .
Suitable container:
Standard parts: 40ft high cabinet (HC container, inner size 11.9×2.35×2.69m), the distance between components and box wall ≥10cm and filled with air bags for anti-collision.
Special-shaped parts: open top container (OT) or flat box (FR), the top covered with rainproof canvas and bundled reinforcement.
Identification and documentation:
International common identification:The "↑" direction arrow, "Keep Dry" and "Fragile" ICONS are printed on the outside of the package (in accordance with GHS standards).
A UN number (such as UN 1356 for steel) and an IMO cargo category label are affixed to both sides of the container.
Documents included with the box:
Attached are packing list (including component number, net weight/gross weight, HS code), material certificate (EN 10025), anticorrosion test report.
| Cargo Type | Recommended Solution | Advantages |
|---|---|---|
| Full Container (FCL) | Ship ≥20 tons per batch in dedicated containers | Minimizes damage, faster customs clearance |
| LCL Consolidation | Combine smaller loads (<20 tons) with other cargo | Reduces costs |
| Oversized Cargo | Use deck barges for components >30m span | Handles special dimensions, GPS tracking |
Preferred Ports:
Departure: Qingdao Port (proximity to production base, heavy-lift terminals).
Destination: Confirm port lifting capacity .
Handling Protocols:
Use nylon slings (no direct steel cable contact) for container loading/unloading, following marked lift points.
Oversized cargo requires on-site marine engineers; operations permitted at wave heights ≤1m.
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