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8. Calculation procedures for sub-systems (floor and wall)
These rules apply to load-bearing (R), separating (EI) and load-bearing and separating (REI) constructions. For the function (EI), they apply only for nominal fire resistances not exceeding 60 minutes.
Non-separating load-bearing structures must be designed for fire exposure on both sides at the same time. Rules are provided in Appendix D(I) for subsystems with cavities. For wall and floor assemblies with cavities totally filled with insulation, a calculation method is given in Appendix C(I).
In an analysis of the separative function, the contributions of the various materials and their location in the subsystem are taken into account (see Appendix E(I)).
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Calculation procedures for sub-systems (floor and wall)
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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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