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Calculation Basis
Assumptions & Limits
- The page appuis preliminaire checks but does not replace full code compliance revue.
- Allowable limits remain project-specific et must be checked separately.
- Module d'elasticite, inertia, et loading entrees must match the real member.
Reference Basis
- Documentation: Methodology
- Documentation: Engineering Review
- Roark's Formulas for Stress and Strain
- Mechanics of Materiaux references
- Eurocode 5 timber reference
Exemples de validation
Ces cas de controle montrent comment les pages principales se comparent a des references elastiques classiques ou a des cas symetriques simples.
Reference de serviceabilite bois
Case setup
L = 4.8 m, w = 2.4 kN/m, E = 11 GPa, I = 7119 cm^4
Validated metric
Fleche maximale
Reference
Resultat de reference: 21,18 mm
Calculator
Resultat du calculateur: 21,18 mm
Check
Ecart: 0,00%
Reference: formule fermee pour charge uniforme sur une travee
Eurocode 5 Bois Setup
| Material basis | Typical C24 timber stiffness level |
| Courant use | Floors, joists, rafters, and light roof beams |
| Typical first check | Serviceability deflection under full-span load |
| Actuel preset section | 75 x 225 mm style timber member |
| Useful follow-up | Compare with project-specific deflection limit |
| Actuel preset | 4.8 m timber beam under 2.4 kN/m |
Notes techniques
- This page is intended pour Eurocode 5 style preliminaire bois poutre checks, especially when the first design question is whether serviceabilite is in range before deeper material et creep adjustments are applied.
- Pour bois poutres, long-term behavior matters more than pour acier, so instantaneous elastic output should be treated as the first layer rather than the full answer.
- Once the rough poutre size is known, continue avec the bois portee page or compare the response against your governing fleche criterion.
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