Technical Overview
Plate girders are used where loads or spans exceed rolled-section capacity — crane runways, transfer girders, bridges and heavy platforms.
Applications
- Bridges
- Crane runway girders
- Transfer girders
- Heavy equipment supports
Engineering Considerations
- Web shear buckling and tension field action
- Bearing and intermediate stiffeners
- Fatigue of welds under cyclic loads
- Lateral-torsional buckling during erection
Fabrication Considerations
- Full-penetration flange splices may require NDT
- Camber is built into web profiles
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