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7. Calculation methods for mechanical strength
7.1 Simplified rules for calculating straight section properties
The standard proposes two simplified methods: the reduced cross-section method and the reduced properties method. For application in France, the National Annex has retained only the reduced cross-section method.
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Reduced cross-section method
The effective cross-sectional area is obtained by reducing the initial cross-sectional area by the effective carbonization depth of ef (figure 7 ) according to :
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Calculation methods for mechanical strength
Calculation procedures for sub-systems (floor and wall)
Bibliography
Websites
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Eurocode
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Eurocode 5 platform
Standards and norms
- General rules. Part 1-2: General – Fire design of structures. Plus its National Annex. AFNOR. - NF EN 1995 - 2005-2007
- Bases de calcul des structures, et complément A1. Plus son Annexe nationale. AFNOR. - NF EN 1990 - (2003-2006-2011)
- Actions on structures. Part 1-2: General actions – Actions on structures exposed to fire. Plus its National Annex. AFNOR. - NF EN 1991-1-2 - (2003-2005-2007)
- General...
Regulations
Construction Products Regulation (J.O. de l'Union Européenne le 04/04/2011).
Order of March 14, 2011 amending the modified order of March 22, 2004 relating to the fire resistance of products, construction elements and structures.
NOR : IOCE1107534A
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Annuaire Bois Construction. AFCOBOIS (2011)
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OPPBT – Organisme professionnel de prévention du bâtiment et des travaux publics (Professional...
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