BS EN 1991-1-2:2002

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.