Multi-Story Prefabricated Steel Structure Fabrication
Professional fabrication of heavy steel structures for residential buildings, office complexes, and hotels with 50-year service life.
Key Specifications
| Raw Steel Material | Q235B, Q355B, ASTM A36 |
| Surface Treatment | Painting or Hot-DIP Galvanized |
| Columns & Beams | H-Section Steel |
| Wall and Roof | Steel cladding sheet, Sandwich Panel |
| Connection Form | Bolt Connection |
| Certifications | CE AISC SGS BV ISO GB |
Structural Components
| Component | Specification |
| Main Steel Frame (Column/Beam) | Q235, Q355 Welded H Section Steel |
| Purlin | Q235 C and Z purlin |
| Knee Brace | Q235 Angle Steel |
| Vertical/Horizontal Support | Q235 Angle Steel, Round Bar or Steel Pipe |
Performance Characteristics
- Wind Resistance: 12 Grades
- Earthquake Resistance: 8 Grades
- Live Load on Roof: 120kg/Sqm
- Temperature Range: -50°C to +50°C
- Structure Usage: Up to 50 years
Material Options
| Component | Options |
| Roof Panel | EPS Sandwich Panel / Glass Fiber Sandwich Panel / Rock Wool Sandwich Panel / PU Sandwich Panel / Steel Sheet |
| Wall Panel | Sandwich Panel / Corrugated Steel Sheet |
| Windows | Aluminum Alloy Window / PVC Window / Sandwich Panel Window |
| Doors | Sliding Sandwich Panel Door / Rolling Metal Door / Personal Door |
Manufacturing Process
Company Capabilities
Qingdao Ruly Steel Engineering Co., Ltd specializes in steel structure design, fabrication, and construction with:
- 35,000 square meter processing facility
- Monthly production capacity of 2000+ tons
- 100+ skilled employees
- Complete project management from design to installation
Our Certifications
Packaging & Shipping
All components are packed in standard export packages suitable for ocean transportation and loaded into 40'HQ containers.
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