PD 7974-3:2011 Application of fire safety engineering principles to the design of buildings. Structural response and fire spread beyond the enclosure of origin
This Published Document (PD 7974-3:2011) provides a framework for developing a rational methodology for design using a fire safety engineering approach through the application of scientific and engineering principles to the protection of people, property and the environment from fire. PD 7974-3:2011 considers the following issues:
- The conditions within a fire enclosure and their potential to cause fire spread
- The thermal and mechanical response of the enclosure boundaries and its structure to the fire conditions
- The impact of the anticipated thermal and mechanical responses on adjacent enclosures and spaces
- The structural responses of loadbearing elements and their effect on structural stability, load transfer and acceptable damage according to the design and purpose of the building
- Fire following structural impact to the building.
PD 7974-3:2011 is one of a series of documents published under the Fire Standards Policy Committee, and is a supporting document to BS 7974, Code of Practice on the Application of Fire Safety Engineering Principles to the Design of Buildings.
Other documents in the series are:
- PD 7974-0: Guide to design framework and fire safety engineering procedures
- PD 7974-1: Initiation and development of fire within the enclosure of origin
- PD 7974-2: Spread of smoke and toxic gases within and beyond the enclosure of origin
- PD 7974-4: Detection of fire and activation of fire suppression systems
- PD 7974-5: Fire service intervention
- PD 7974-6: Evacuation
- PD 7974-7: Probabilistic risk assessment
Contents for PD 7974-3:2011
- Scope
- Normative references
- Terms and definitions
- Symbols and abbreviated terms
- Interaction of BS 7974 sub-systems
- Design approach to PD 7974-3
- Analysis of mechanisms of fire spread
- Characterization of the fire enclosure and openings
- Characterization of the fire conditions
- Analysis of thermal response
- Behaviour of separating elements in fire
- Analysis of mechanical response of loadbearing structural elements and frames
Supersession
This Published Document supersedes PD 7474-3:2003, which is withdrawn.
