{"id":453557,"date":"2024-10-20T09:30:54","date_gmt":"2024-10-20T09:30:54","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-1991-1-22024\/"},"modified":"2024-10-26T17:38:59","modified_gmt":"2024-10-26T17:38:59","slug":"bs-en-1991-1-22024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-1991-1-22024\/","title":{"rendered":"BS EN 1991-1-2:2024"},"content":{"rendered":"
1.1 Scope of EN 1991 1 2 (1) The methods given in this Eurocode are applicable to buildings and civil engineering works, with a fire load related to the building and its occupancy. (2) EN 1991 1 2 deals with thermal and mechanical actions on structures exposed to fire. It is intended to be used in conjunction with the fire design Parts of EN 1992 to EN 1996 and EN 1999 which give rules for designing structures for fire resistance. (3) EN 1991 1 2 contains thermal actions either nominal or physically based. More data and models for physically based thermal actions are given in annexes. (4) EN 1991 1 2 does not cover the assessment of the damage of a structure after a fire. (5) EN 1991 1 2 does not cover supplementary requirements concerning, for example: – the possible installation and maintenance of sprinkler systems; – conditions on occupancy of building or fire compartment; – the use of approved insulation and coating materials, including their maintenance. 1.2 Assumptions (1) In addition to the general assumptions of EN 1990 the following assumptions apply: – any active and passive fire protection systems taken into account in the design will be adequately maintained; – the choice of the relevant design fire scenario is made by appropriate qualified and experienced personnel, or is given by the relevant national regulation.<\/p>\n
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 1 Scope 1.1 Scope of EN 199112 1.2 Assumptions 2 Normative references <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | 3 Terms, definitions and symbols 3.1 Terms and definitions 3.1.1 Common terms used in Eurocode Fire parts <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 3.1.2 Special terms relating to design in general 3.1.3 Terms relating to thermal actions <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | 3.1.4 Terms relating to heat transfer analysis <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | 3.2 Symbols and abbreviations 3.2.1 Latin upper case letters <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | 3.2.2 Latin lower case letters <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | 3.2.3 Greek upper case letters <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | 3.2.4 Greek lower case letters <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | 4 Structural fire design procedure 4.1 General 4.2 Design fire scenario 4.3 Design fire 4.4 Temperature analysis of members <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | 4.5 Mechanical analysis of members <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | 5 Thermal actions for temperature analysis 5.1 Heat flux <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | 5.2 Nominal fire curves 5.2.1 Standard fire curve 5.2.2 External fire curve 5.2.3 Hydrocarbon fire curve <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | 5.3 Physically based fire models 5.3.1 Simplified fire models 5.3.1.1 General 5.3.1.2 Compartment fires 5.3.1.3 Localized fires 5.3.2 Advanced fire models <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | 6 Mechanical actions for structural analysis 6.1 General 6.2 Simultaneity of actions 6.2.1 Actions from normal temperature design <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | 6.2.2 Additional actions 6.3 Combination rules for actions 6.3.1 General rule 6.3.2 Simplified rules <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | 6.3.3 Load level <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | Annex A (informative)Parametric fire curves A.1 Use of this annex A.2 Scope and field of application A.3 Fire curves in the heating phase <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | A.4 Fire curves in the cooling phase <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | Annex B (informative)Thermal actions for external members \u2014 Simplified calculation method B.1 Use of this annex B.2 Scope and field of application B.3 Conditions of use <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | B.4 Effects of wind B.4.1 Mode of ventilation B.4.2 Flame deflection by wind <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | B.5 Characteristics of fire and flames B.5.1 No forced draught <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | B.5.2 Forced draught <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | B.6 Overall configuration factors <\/td>\n<\/tr>\n | ||||||
46<\/td>\n | Annex C (informative)Localized fires C.1 Use of this annex C.2 Scope and field of application C.3 Virtual solid flame C.3.1 Shape of the virtual solid flame <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | C.3.2 Temperature of the virtual solid flame <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | C.3.3 Virtual solid flame position and extension <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | C.3.4 Net heat flux <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | Annex D (informative)Advanced fire models D.1 Use of this annex D.2 Scope and field of application D.3 One-zone models <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | D.4 Two-zone models D.5 Computational fluid dynamics models <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | Annex E (informative)Fire load densities, fire growth rates and rate of heat releases E.1 Use of this annex E.2 Scope and field of application E.3 Design value of fire load density <\/td>\n<\/tr>\n | ||||||
58<\/td>\n | E.4 Determination of fire load densities E.4.1 General E.4.2 Definitions <\/td>\n<\/tr>\n | ||||||
59<\/td>\n | E.4.3 Protected fire loads E.4.4 Net calorific values <\/td>\n<\/tr>\n | ||||||
61<\/td>\n | E.4.5 Fire load classification of occupancies <\/td>\n<\/tr>\n | ||||||
62<\/td>\n | E.4.6 Individual assessment of fire load densities E.5 Combustion behaviour E.6 Rate of heat release Q <\/td>\n<\/tr>\n | ||||||
65<\/td>\n | Annex F (informative)Equivalent time of fire exposure F.1 Use of this annex F.2 Scope and field of application F.3 Equivalent time of standard fire exposure <\/td>\n<\/tr>\n | ||||||
67<\/td>\n | Annex G (informative) Configuration factor G.1 Use of this annex G.2 Scope and field of application G.3 General <\/td>\n<\/tr>\n | ||||||
68<\/td>\n | G.4 Shadow effects G.5 External members <\/td>\n<\/tr>\n | ||||||
71<\/td>\n | G.6 Virtual solid flame <\/td>\n<\/tr>\n | ||||||
75<\/td>\n | Annex H (informative) Thermal actions for structural fire loads of timber structures H.1 Use of this annex H.2 Scope and field of application H.3 General <\/td>\n<\/tr>\n | ||||||
76<\/td>\n | H.4 Structural fire load by the timber members <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Eurocode 1. Actions on structures – Actions on structures exposed to fire<\/b><\/p>\n |