Seismic Design Long Span Steel Factory Building Bolts Connections On Site Assembly

Long-span steel structures are engineered for buildings that require extensive roof coverage, large clear spans, and minimal internal columns. Depending on the building layout, load conditions, and architectural requirements, suitable structural systems may include space frames, steel trusses, cable-supported structures, and long-span portal frames. Each solution requires careful consideration of structural stability, load transfer, material efficiency, and construction feasibility to meet the specific demands of the project.

Bafang Steel Structure provides coordinated fabrication and export support for long-span steel structure projects, integrating structural detailing, manufacturing preparation, component processing, and shipment planning. Our workflow incorporates BIM-assisted 3D modeling, precision steel fabrication, CNC pipe intersection cutting, component marking, and export packaging to support dimensional coordination, component traceability, and efficient site assembly. We also prepare assembly drawings, installation documentation, and lifting plans according to project requirements. For overseas projects, remote technical assistance helps construction teams clarify assembly procedures, coordinate steel member installation, and address technical questions during on-site erection.

• Structural Versatility: Multiple framing systems accommodate different spans, roof geometries, and building functions.
• Space Utilization: Reduced intermediate columns can provide more flexible interior layouts.
• Precision Manufacturing: CNC processing and component identification support fabrication accuracy and assembly coordination.
• Organized Export Preparation: Packaging plans consider component dimensions, shipping conditions, and site handling requirements.
• Technical Coordination: Project-specific documentation and remote guidance support overseas assembly and installation.

Long-span steel structures are widely used in industrial factory roofs, sports arenas, large warehouses, exhibition halls, and other buildings requiring wide-span roof systems and unobstructed interior areas.

Our fabrication workflow connects engineering documentation with component production and export preparation.

Bafang Steel Structure conducts quality inspections at key stages of fabrication to verify compliance with approved drawings and project specifications. Inspection procedures cover material verification, dimensional accuracy, welding quality, protective coatings, and final shipment preparation.

• Material Verification: Check steel grades and material certificates against project requirements.
• Dimensional Inspection: Verify component dimensions and connection locations against approved drawings.
• Welding Quality Checks: Conduct visual inspections and applicable nondestructive testing as specified.
• Coating Inspection: Check surface preparation and protective coating quality.
• Final Inspection: Confirm component identification, quantities, and export packaging before shipment.

Established in 1999, Bafang Steel Structure is an integrated steel structure group delivering end-to-end services in engineering research, structural design, fabrication, and installation. The company undertakes a diverse range of steel construction projects, drawing on its experience in complex structural systems and large-scale engineering applications. Its project portfolio spans industrial buildings, transportation hubs, public and commercial venues, bridges, high-rise structures, long-span roofing systems, enclosed bulk material storage facilities, and offshore photovoltaic installations. By combining engineering expertise with manufacturing capabilities, Bafang Steel Structure develops project-specific solutions tailored to different structural requirements and construction environments.