Quality High Strength Structural Steel Frame Construction Long Span Steel Structure Factory Building factory
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Quality High Strength Structural Steel Frame Construction Long Span Steel Structure Factory Building factory
Quality High Strength Structural Steel Frame Construction Long Span Steel Structure Factory Building factory
Quality High Strength Structural Steel Frame Construction Long Span Steel Structure Factory Building factory
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High Strength Structural Steel Frame Construction Long Span Steel Structure Factory Building

Brand Name: Bafang
Place of Origin: Xuzhou, China
Certification: CE EN1090,ISO9001,AISC
Minimum Order Quantity: 100 square meters
Price: $30–$80 per square meter (negotiable)
Supply Ability: 15,000 tons per month
Delivery Time: 30–55 days
Payment Terms: L/C,T/T

Product Details


Structural Frame: High-Strength Steel Frame Steel Grade: Q355B / Q355NL
Structural Solutions: Space Frames, Cable-Supported Beams Component Processing: CNC Pipe Intersection Cutting
Protective Treatment: Project-Specific Protective Coating Application: Factory, Exhibition Hall, Warehouse
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High Strength Structural Steel Frame

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Long Span Steel Structure Factory Building

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Turnkey Steel Frame Factory Building

Product Description

Long-Span Steel Structures for Large-Scale Buildings

Large-span steel structures are engineered to create large, open interior spaces with minimal or no intermediate columns. Depending on building dimensions, roof geometry, loading conditions, and architectural requirements, structural solutions may include space frames, steel trusses, cable-supported beam systems, and long-span portal frames. These systems are widely applicable to industrial buildings, sports facilities, exhibition halls, warehouses, and other projects requiring extensive roof coverage.

Bafang Steel Structure provides coordinated steel fabrication and export support for overseas long-span construction projects. Our capabilities cover BIM-based 3D detailing, steel member fabrication, CNC pipe intersection cutting, component identification, and export packaging. We also prepare assembly documentation and project-specific installation plans, with remote technical assistance available to help overseas construction teams coordinate steel erection and on-site assembly.

From fabrication planning to shipment preparation, our approach focuses on dimensional coordination, component traceability, and practical installation requirements. Structural configurations, material specifications, fabrication procedures, and protective treatments can be determined according to approved engineering drawings and project requirements.

Long-span steel structure factory building with wide clear-span interior and steel truss roof system Exterior view of a large industrial steel structure building with metal roof panels and open bay design

Product Specifications
Item Specification
Product Name Long-Span Steel Structure
Main Structural Systems Space Frames (Spatial Grid Structures), Steel Trusses, String-Supported Beam Structures, Long-Span Portal Frames
Steel Grade Q355B / Q355NL
Bolts & Welded Connections High-Strength Bolts; Complete Joint Penetration (CJP) Welded Connections, Where Specified
Wall & Roofing Systems Metal Roof Panels / Insulated Roofing Systems (Optional)
Doors Not Applicable to Open Roof Structures
Windows & Daylighting Roof Skylight Panels (Optional)
Surface Treatment Shot Blasting for Rust Removal and Protective Coating; Fire-Resistant Coatings Available as Required
Additional Specifications Single-Span Configurations of 60–180 m, Subject to Structural Design; CNC Intersecting-Line Cutting; Nondestructive Testing (NDT) of Category I Welds as Specified; Roof Loads Calculated on a Project-Specific Basis in Accordance with Applicable International Design Standards

Key Features
1. Large Clear-Span Interiors

Long-span steel systems reduce the need for intermediate columns, providing more usable interior space for production lines, storage operations, spectator seating, and other building functions.

2. Efficient Structural Design

Structural configurations are selected according to span, loading conditions, stability requirements, and material efficiency. Engineering calculations help establish a suitable balance between structural performance and steel consumption.

3. Flexible Structural Configurations

Space frames, steel trusses, cable-supported systems, and long-span portal frames offer different solutions for varied roof geometries, building layouts, and architectural concepts.

4. Precision Fabrication and Component Identification

BIM-assisted detailing, CNC cutting, precision member processing, and component marking help coordinate manufacturing with approved drawings and facilitate component identification during transportation and assembly.

5. Export Packaging and Installation Support

Steel members are identified and packaged according to project-specific transportation and assembly requirements. Assembly drawings, lifting plans, and remote technical guidance can support overseas teams during steel structure erection.


Certifications
Certification documents and quality compliance certificates for Bafang Steel Structure long-span steel building systems

Applications
  • Industrial Workshops: Large production areas with flexible equipment layouts and fewer internal obstructions.
  • Warehouses and Logistics Facilities: Expansive roof coverage for storage, material handling, and logistics operations.
  • Sports Arenas and Stadiums: Wide-span roof systems designed around spectator areas and venue layouts.
  • Exhibition and Convention Centers: Open interiors suitable for exhibitions, events, and temporary installations.
  • Large Public Buildings: Structural solutions for terminals, halls, and other buildings with demanding spatial requirements.
Large-span steel structure application in a sports arena or exhibition hall with wide open interior space

Fabrication and Export Capabilities
BIM-Based 3D Detailing

Three-dimensional modeling and structural detailing help coordinate member geometry, connection locations, and fabrication information before manufacturing. The scope of modeling and drawing deliverables is agreed upon according to project requirements.

Precision Steel Member Processing

Steel members are processed according to approved fabrication drawings. CNC pipe intersection cutting can be used for applicable tubular members, while other cutting and machining methods are selected according to component geometry and connection design.

Component Marking and Traceability

Component identification supports the matching of fabricated members with drawings, packing lists, and assembly sequences. Consistent marking helps overseas teams identify components during unloading and erection.

Export Packaging and Shipment Preparation

Packaging plans take account of component dimensions, weights, transportation conditions, container limitations, and the planned installation sequence. Where appropriate, members can be grouped and packed to support efficient unloading and on-site handling.

Overseas Assembly and Technical Assistance

Bafang Steel Structure can provide assembly drawings, installation documentation, and project-specific lifting plans. Remote technical assistance helps overseas construction teams clarify component identification, assembly sequences, and technical details during installation. Site supervision and other on-site services should be confirmed separately according to project scope.


Quality Control

Quality inspections should be conducted at appropriate stages of fabrication to verify compliance with approved drawings, material specifications, and project requirements.

  • Material Verification: Check steel grades, material certificates, and traceability records.
  • Dimensional Inspection: Verify member lengths, connection positions, and fabrication dimensions against approved drawings.
  • Welding Inspection: Conduct visual inspections and specified nondestructive testing in accordance with applicable project requirements.
  • Surface Treatment Inspection: Check surface preparation, protective coating application, and specified coating thickness.
  • Final Inspection: Verify component markings, quantities, packing lists, and export packaging before shipment.

Inspection methods, acceptance criteria, and documentation should follow the applicable project specifications and governing standards.

Quality control inspection of steel structure components at fabrication facility Dimensional inspection and measurement of fabricated steel members Welding inspection and nondestructive testing of steel structure connections Surface treatment and protective coating inspection on steel structure components

About Bafang

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.

Bafang Steel Structure manufacturing facility with large-scale steel fabrication operations Completed long-span steel structure building project by Bafang Steel Structure

FAQ
1. What types of long-span steel structures can you manufacture?

We manufacture space frames, steel trusses, string-supported beam structures, and long-span portal frames. Structural selection is based on span requirements, loading conditions, architectural design, and project constraints.

2. Are steel structures with spans of 60–180 meters available?

Long spans within this range may be feasible depending on the structural system and project conditions. Final specifications are determined through engineering analysis and project-specific design.

3. What steel grades and design codes do you support?

Q355B and Q355NL steel grades are available subject to project specifications. Design codes, material requirements, and inspection standards can be coordinated according to the applicable regulations in the destination market.

4. Do you offer export packaging and overseas installation assistance?

Yes. Our services can include component marking, export packaging, packing lists, assembly drawings, erection planning, and remote technical support, depending on the agreed project scope.

5. What details are required to request a quotation?

Please share the project location, building dimensions, required span, available drawings, roofing specifications, applicable design standards, and delivery destination. These details help us evaluate the project and prepare a more accurate quotation.

Product Highlights

High-strength Q355B/Q355NL long-span steel structures with CNC precision fabrication for factories, warehouses, and exhibition halls. Space frames, trusses, and cable-supported systems deliver 60-180m clear spans. BIM detailing, export packaging, and remote installation support included.

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