Built-Up Steel Frames
Frames using welded I, box or tapered sections fabricated from plate.
Technical Overview
Built-up sections let engineers size flanges and webs independently, producing members beyond rolled-section ranges or optimised for a specific load.
Applications
- Heavy industrial frames
- Pre-engineered buildings
- Crane-supported buildings
Engineering Considerations
- Local buckling of slender plates
- Web-to-flange weld design
- Stiffener requirements
- Distortion control in fabrication
Fabrication Considerations
- Automated submerged-arc welding lines
- Plate cutting and straightening tolerances
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