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BS EN 1991-1-2:2002

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Eurocode 1. Actions on structures General actions. Actions on structures exposed to fire
Available format(s)

Hardcopy , PDF

Superseded date

03-25-2024

Language(s)

English

Published date

02-28-2013

Foreword
Section 1 - General
1.1 Scope
1.2 Normative references
1.3 Assumptions
1.4 Distinction between Principles and Application
    Rules
1.5 Terms and definitions
    1.5.1 Common terms used in Eurocode Fire parts
    1.5.2 Special terms relating to design in general
    1.5.3 Terms relating to thermal actions
    1.5.4 Terms relating to heat transfer analysis
1.6 symbols
Section 2 - Structural Fire design procedure
2.1 General
2.2 Design fire scenario
2.3 Design fire
2.4 Temperature Analysis
2.5 Mechanical Analysis
Section 3 - Thermal actions for temperature analysis
3.1 General rules
3.2 Nominal temperature-time curves
    3.2.1 Standard temperature-time curve
    3.2.2 External fire curve
    3.2.3 Hydrocarbon curve
3.3 Natural fire models
    3.3.1 Simplified fire models
          3.3.1.1 General
          3.3.1.2 Compartment fires
          3.3.1.3 Localised fires
    3.3.2 Advanced fire models
Section 4 - Mechanical actions for structural analysis
4.1 General
4.2 Simultaneity of actions
    4.2.1 Actions from normal temperature design
    4.2.2 Additional actions
4.3 Combination rules for actions
    4.3.1 General rule
    4.3.2 Simplified rules
    4.3.3 Load level
Annex A (informative) - Parametric temperature-time
        curves
Annex B (informative) - Thermal actions for external
        members - Simplified calculation method
      B.1 Scope
      B.2 Conditions of use
      B.3 Effects of wind
          B.3.1 Mode of ventilation
          B.3.2 Flame deflection by wind
      B.4 Characteristics of fire and flames
          B.4.1 No forced draught
          B.4.2 Forced draught
      B.5 Overall configuration factors
Annex C (informative) - Localised fires
Annex D (informative) - Advanced fire models
      D.1 One-zone models
      D.2 Two-zone models
      D.3 Computational fluid dynamic models
Annex E (informative) - Fire load densities
      E.1 General
      E.2 Determination of fire load densities
          E.2.1 General
          E.2.2 Definitions
          E.2.3 Protected fire loads
          E.2.4 Net calorific values
          E.2.5 Fire load classification of occupancies
          E.2.6 Individual assessment of fire load
                densities
      E.3 Combustion behaviour
      E.4 Rate of heat release Q
Annex F (informative) - Equivalent time of fire exposure
Annex G (informative) - Configuration factor
      G.1 General
      G.2 Shadow effects
      G.3 External members
Bibliography

Pertains to buildings, with a fire load related to the building and its occupancy.

  1. The methods given in this Part 1-2 of EN 1991 are applicable to buildings, with a fireload related to the building and its occupancy.

  2. This Part1-2 ofEN 1991 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 prEN 1992 to prEN 1996 and prEN 1999 which give rules for designing structures for fire resistance.

  3. This Part1-2 of EN 1991 contains thermal actions related to nominal and physically based thermalactions. More data and models for physically based thermal actions are given in annexes.

  4. This Part 1-2 of EN 1991 gives general principles and application rulesin connection to thermal andmechanical actions to be used in conjunction with EN 1990, EN 1991-1-1, EN 1991-1-3 and EN 1991-1-4.

  5. The assessment of the damage of a structure after a fire, is not covered by the present document.

Committee
B/525/-/32
DevelopmentNote
Supersedes DD ENV 1991-2.2 To be read in conjunction with BS EN 1990, BS EN 1991-1-1, BS EN 1991-1-3 and BS EN 1991-1-4 (12/2002) National Annex of this document is also available. See BS EN 1991-1-2 NA. (04/2007) Also available as part of BS KIT 205. (08/2010)
DocumentType
Standard
Pages
62
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

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16/30314117 DC : 0 BS 9999 - FIRE SAFETY IN THE DESIGN, MANAGEMENT AND USE OF BUILDINGS - CODE OF PRACTICE
PD 6688-1-2:2007 Background paper to the UK National Annex to BS EN 1991-1-2
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PREN 13501-2 : DRAFT 2015 FIRE CLASSIFICATION OF CONSTRUCTION PRODUCTS AND BUILDING ELEMENTS - PART 2: CLASSIFICATION USING DATA FROM FIRE RESISTANCE TESTS, EXCLUDING VENTILATION SERVICES
ISO 1716:2010 Reaction to fire tests for products Determination of the gross heat of combustion (calorific value)
EN 1991-1-1:2002/AC:2009 EUROCODE 1: ACTIONS ON STRUCTURES - PART 1-1: GENERAL ACTIONS - DENSITIES, SELF-WEIGHT, IMPOSED LOADS FOR BUILDINGS
EN 1363-2:1999 Fire resistance tests - Part 2: Alternative and additional procedures
EN 1990:2002/A1:2005/AC:2010 EUROCODE - BASIS OF STRUCTURAL DESIGN
EN ISO 1716:2010 Reaction to fire tests for products - Determination of the gross heat of combustion (calorific value) (ISO 1716:2010)

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