Large Span Arched Prefabricated Steel Structure Q355B Q355NL Steel Space Frame Structure

Long-span steel structures require coordinated structural engineering, connection design, fabrication detailing, and erection planning. Our solutions cover space frame systems, steel trusses, cable-supported trusses, and long-span portal frames for buildings that require wide, unobstructed interior areas.

From structural scheme coordination to workshop fabrication, we support project-specific steel structure development with BIM-based 3D detailing, CNC cutting, precision intersecting-line processing, component identification, and fabrication planning.

Each project should be evaluated according to its span, structural configuration, support conditions, roof loads, wind exposure, seismic requirements, transportation limitations, and installation method. These factors influence member sizing, connection selection, fabrication tolerances, and erection procedures.

The available specifications below serve as preliminary reference information. Final configurations are confirmed through project-specific engineering.

Space frames, trusses, cable-supported trusses, and portal frames provide different structural characteristics. The appropriate system depends on the required clear span, roof geometry, support arrangement, loading conditions, and architectural intent.

BIM-based modeling and 3D detailing can help coordinate member geometry, connection interfaces, component dimensions, and assembly sequences before fabrication. The scope of model coordination and drawing deliverables is agreed upon for each project.

Steel members can be processed using CNC cutting and intersecting-line cutting where required. Component numbers and fabrication drawings support identification, sorting, packing, and installation at the destination site.

Connection details may incorporate high-strength bolts and specified full-penetration welded joints. Inspection methods, acceptance criteria, and nondestructive testing requirements should follow the approved drawings, project specifications, and applicable standards.

Fabrication drawings, component marking, shipping dimensions, lifting plans, and assembly sequences can be coordinated to reduce avoidable handling and installation difficulties on overseas projects.

• Long-span industrial factory roofs
• Sports halls and stadium roof structures
• Large logistics and storage warehouses
• Exhibition centers and public assembly buildings
• Commercial and industrial buildings requiring large open spaces

Depending on the agreed scope, project documentation may include material certificates, fabrication drawings, component lists, dimensional inspection records, welding inspection reports, coating specifications, and packing lists.

The exact documentation, inspection coverage, and acceptance requirements should be confirmed before production. Design calculations and compliance documentation must be prepared or approved by appropriately qualified professionals for the project jurisdiction.

Founded in 1999, Bafang Steel Structure is a professional steel structure group specializing in research, design, manufacturing, and installation. With extensive experience in complex steel structure engineering, the company provides structural solutions for industrial facilities, transportation infrastructure, large public venues, bridges, high-rise buildings, large-span roof systems, enclosed material storage facilities, and offshore photovoltaic projects.

Combining engineering experience, manufacturing capacity, and project coordination capabilities, Bafang Steel Structure provides customized solutions for large-span industrial buildings, warehouses, sports facilities, exhibition halls, and other buildings requiring wide, open interior spaces.

From structural scheme coordination and fabrication planning to component delivery and installation support, the company works to align steel structure solutions with project-specific technical requirements, transportation conditions, and construction plans.