FSS company is a professional steel structure product design, production, manufacturing and installation integration company, we can provide comprehensive steel structure product solutions for customers sincere professional service.
China Standard: Adhere to GB 50017-2017 Code for Design of Steel Structures, selecting materials such as Q345B (yield strength: 345 MPa) or Q235B (yield strength: 235 MPa) steel grades. Key standards include GB/T 700-2006 for carbon steel and GB/T 1591-2008 for low-alloy steel.
USA Standard: Follow AISC 360-22 Specification for Structural Steel Buildings, using ASTM A992 (Fy = 50 ksi) or ASTM A36 (Fy = 36 ksi).
Europe Standard: Comply with EN 1993-1-1 (Eurocode 3) and select steel grades like S355 (yield strength: 355 MPa) or S275.
Product Design Specifications
Design calculations include load analysis (dead, live, wind, seismic), joint detailing, and stability checks.
Standardized product models (e.g., H-beams, BOX-sections, TUBE truss sections) are selected based on span, load capacity, and regional code requirements.
Utilize Tekla Structures to create accurate 3D models, incorporating code-compliant connections (e.g., bolted, welded).
Generate shop drawings with precise dimensions, weld symbols, and bolt specifications.
Key Deliverables :
Assembly Drawings: Highlight component positioning and welding/bolting sequences.
Part Lists:
Detailed material specifications (e.g., plate thickness, bolt grades).
Clash Detection:
Resolve conflicts in complex assemblies before fabrication.
Quality Assurance
Cross-check drawings against GB 50205 (China), AWS D1.1 (USA), or EN 1090 (Europe) for compliance.
Material Inspection : Verify steel certificates (e.g., GB/T 700, ASTM A6) and conduct mechanical tests (tensile, impact).
Cutting: CNC plasma/oxy-fuel cutting with ≤2mm tolerance.
Welding:Follow qualified procedures (e.g., GB 50661 for China, AWS D1.1 for USA).
Full-penetration welds for critical joints (e.g., beam-column connections). Bolt Hole Drilling: Ensure hole alignment within ±1.5mm tolerance.
Dimensional Accuracy:Use laser scanning to validate component geometry.
Non-Destructive Testing (NDT):Ultrasonic Testing (UT) for full-penetration welds (Grade B per GB 11345 for China). Magnetic Particle Testing (MT) for surface cracks.
Coating Inspection: Confirm anti-corrosion coatings meet standards (e.g., GB/T 8923 for surface preparation, ISO 12944 for paint systems).
Steel Pallets : Secure components with wooden and steel frame (e.g., Packing belt).
Marking: Label each package with project ID, weight, and handling instructions per ISO 780. Container Loading Optimize space using CAD-based loading plans to prevent deformation during transit. Use twist locks and dunnage bags to immobilize cargo within containers.
Documentation: Provide Mill Certificates, NDT reports, and Packing Lists compliant with destination regulations (e.g., CE marking for Europe, AISC certification for USA).
China Standard:GB 50205-2020《Code for Acceptance of Construction Quality》.
USA Standard:AISC Certified Fabricator Program.
Europe Standard:EN 1090-1 (Execution Class 2-4).
This solution ensures end-to-end adherence to global standards, combining advanced software, rigorous quality protocols, and logistics optimization. For full details, refer to the cited standards and specifications.
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