Product Overview
Box Column is a closed built-up column fabricated from steel plates for high axial, bending and torsional demands. It is supplied as a project-specific solution rather than a fixed catalogue item. Geometry, member sizes, connections, protection systems and delivery segmentation are confirmed from approved documents.
The engineering and fabrication scope can coordinate moment connections, base plates, splices, diaphragms and concrete infill where specified. Early review of drawings, loads, site conditions and transport limits helps define a practical supply package and reduces interface risk.
Product Core Parameters
| Product type | Box Column |
|---|---|
| Primary configuration | closed built-up column fabricated from steel plates for high axial, bending and torsional demands |
| Engineering basis | Approved project drawings, loads, site conditions and applicable codes |
| Dimensions / span | Project-specific |
| Material grade | Defined by approved design and procurement specification |
| Connections | Welded, bolted or combined as detailed |
| Inspection | Approved inspection and test plan; specified NDT where required |
| Surface protection | Selected for exposure, service life and maintenance plan |
| Delivery | Component size, marking and sequence coordinated with transport and erection |
Key Features
- Project-specific engineering: The box column is developed around closed-section welding, internal diaphragm fit-up, straightness and lamellar stress management; final member sizes and details follow approved calculations and drawings.
- Coordinated interfaces: Design and detailing account for moment connections, base plates, splices, diaphragms and concrete infill where specified, reducing conflicts during fabrication and site assembly.
- Controlled prefabrication: CNC processing, documented fit-up and controlled welding improve dimensional consistency and traceability before shipment.
- Connection detailing: Bolted, welded and bearing interfaces are coordinated with the actual load path, access, tolerances and erection method.
- Inspection planning: Material verification, dimensional checks, weld inspection and specified NDT are tied to the approved quality plan.
- Delivery-ready documentation: Member marks, packing lists, inspection records and erection information are prepared to match the agreed supply scope.
Main Components
The exact bill of materials is project-specific. A typical box column package may include:
- 01 — Four plate box section: Detailed and fabricated according to its structural function, connection requirements and approved drawings.
- 02 — Internal diaphragms and stiffeners: Detailed and fabricated according to its structural function, connection requirements and approved drawings.
- 03 — Base and bearing plates: Detailed and fabricated according to its structural function, connection requirements and approved drawings.
- 04 — Beam-connection panels: Detailed and fabricated according to its structural function, connection requirements and approved drawings.
- 05 — Column splice details: Detailed and fabricated according to its structural function, connection requirements and approved drawings.
- 06 — Access, weld and erection features: Detailed and fabricated according to its structural function, connection requirements and approved drawings.
Typical Applications
01 — High-rise and multi-story buildings
Suitable where the project requires closed-section welding, internal diaphragm fit-up, straightness and lamellar stress management. Final suitability depends on loads, geometry, site conditions, interfaces and applicable regulations.
02 — Heavy industrial frames
Suitable where the project requires closed-section welding, internal diaphragm fit-up, straightness and lamellar stress management. Final suitability depends on loads, geometry, site conditions, interfaces and applicable regulations.
03 — Large public and infrastructure structures
Suitable where the project requires closed-section welding, internal diaphragm fit-up, straightness and lamellar stress management. Final suitability depends on loads, geometry, site conditions, interfaces and applicable regulations.
Manufacturing & Delivery
- Review approved member and connection drawings
- Confirm material grades, dimensions, tolerances and inspection hold points
- Verify incoming material certificates and identification
- Perform CNC cutting, drilling, machining and plate preparation
- Complete controlled assembly, fit-up and welding
- Check straightness, geometry, holes and connection interfaces
- Perform visual inspection and specified NDT
- Apply surface treatment and verify coating quality
- Mark, package and deliver by erection sequence
Project Customization
Customization can cover overall geometry, member sections, material grades, connections, openings, interfaces, inspection scope, coating system, fire protection, packing and erection sequence. For a technical review, provide the project location, design basis, drawings, loads, quantities, required standards, inspection requirements, finish and delivery destination.
Quotation input: architectural or structural drawings, dimensional schedule, load criteria, material specification, connection responsibilities, coating requirements, quality documentation and target delivery program.