Fast Build Large Space Steel Structure Easy Assemble Metal Building Factory Custom Design
Product Details
| Assembly: | Fast On-Site Assembly | Structural System: | Space Frame, Steel Truss |
|---|---|---|---|
| Steel Grade: | Q355B / Q355NL | Fabrication: | CNC Cutting, BIM Modeling |
| Span Capability: | Large Column-Free Spans | Application: | Factory, Industrial Metal Building |
| Highlight |
Fast Build Large Space Steel Structure,Easy Assemble Large Metal Building,Custom Design Steel Factory Building |
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Product Description
Long-span steel structures are designed to accommodate large building spans while maintaining open, column-free interior spaces. Bafang Steel Structure develops project-specific solutions using space frames, steel trusses, cable-supported truss systems, and long-span portal frames. Each structural system is selected to suit the building layout, functional requirements, and architectural design.
Our engineering and manufacturing workflow connects structural planning with detailed fabrication execution. Using BIM-based 3D modeling, CNC cutting, precision pipe intersection processing, component marking, and fabrication sequence planning, we help translate complex structural designs into accurately manufactured steel components ready for transportation and on-site assembly.
Every long-span project involves its own engineering challenges. Span length, load distribution, column and support arrangements, roof system requirements, wind and seismic conditions, shipping dimensions, and site erection constraints all affect the final design. By considering these variables during the engineering and detailing stages, we aim to improve structural coordination, fabrication accuracy, and installation efficiency while meeting the specific requirements of each project.
The available specifications below serve as preliminary reference information. Final configurations are confirmed through project-specific engineering.
| Item | Specification |
|---|---|
| Product Name | Long-Span Steel Structure |
| Structural Systems | Space frames, steel trusses, cable-supported trusses, long-span portal frames |
| Steel Grades | Q355B / Q355NL, subject to project requirements |
| Connections | High-strength bolted connections and full-penetration welded joints, as specified |
| Roof and Wall Systems | Metal roofing panels or insulated roofing systems, optional |
| Doors | Not applicable to open roof-only structures; available for enclosed buildings where required |
| Skylights | Optional roof daylighting panels |
| Surface Treatment | Shot blasting and anti-corrosion coating; fireproof coating available when specified |
| Reference Span Range | 60–180 m for suitable project configurations, subject to engineering verification |
| Cutting and Processing | CNC cutting and intersecting-line cutting |
| Weld Inspection | Nondestructive testing of specified welds according to project quality requirements |
| Design Loads | Roof, wind, snow, seismic, and other applicable loads determined by project-specific calculations |

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.

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.

We offer space frames, steel trusses, cable-supported trusses, and long-span portal frames. The suitable system depends on the required span, loading conditions, and building design.
This range may be achievable for suitable structural configurations. Actual feasibility must be verified through project-specific structural calculations and design requirements.
Q355B and Q355NL are available subject to project requirements. Applicable design codes, material specifications, and inspection criteria should be confirmed for the destination country.
Yes. We can coordinate component numbering, export packaging, packing lists, assembly documentation, and remote technical guidance according to the agreed project scope.
Please provide the project location, building dimensions, required span, structural drawings (if available), roof requirements, design standards, and delivery destination for an initial assessment.
Product Highlights
Fast-build long-span steel structures with large column-free spans, Q355B/Q355NL steel, space frames and trusses. BIM modeling, CNC cutting, and precision fabrication ensure fast on-site assembly. Custom factory designs with export packaging and installation support.
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Please use our online inquiry contact form below if you have any questions, our team will get back to you as soon as possible.