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Calculation Basis
Assumptions & Limits
- Preset values speed up the setup but do not replace final section or material verification.
- The page is designed for fast deflection and reaction checks.
- Local code rules, long-term effects, and connection details still need separate review.
Reference Basis
- Documentation: Methodology
- Documentation: Engineering Review
- Roark's Formulas for Stress and Strain
- Mechanics of Materials references
UPN Channel Reference Setup
| Profile family | European UPN channel section |
| Typical reference size | UPN 200 level stiffness basis |
| Preset inertia Ix | 1910 cm^4 |
| Elastic modulus E | 210 GPa |
| Default support case | Simply supported beam |
| Default loading | Centered point load |
| Use case | Preliminary open-channel beam checks |
Engineering Notes
- UPN channel members are open sections, so stiffness and practical behavior can differ noticeably from doubly symmetric I-sections of similar mass.
- Use this page for early channel-beam deflection checks when the exact UPN designation is not fixed yet.
- If torsion, eccentric loading, or lateral restraint becomes important, extend the beam check with a stability and connection review.
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