Part 1: Architect’s Guide 1 - 42 Figure 6.1 Commercial centre of Aquilone 6.2 Behaviour during a fire 6.2.1 General remarks Requirements in terms of structural behaviour during a fire are defined in national regulations. These depend on the end-use of the building, its size and accessibility, and the consequences in the event of collapse. The objectives of fire safety objectives are: To ensure stability of the load-bearing elements for a specified period of time To limit the emergence and spread of fire and smoke To facilitate rescue operations To facilitate safe and rapid evacuation of occupants To limit the spread of fire to neighbouring structures. To achieve these objectives, regulations impose different types of requirement: Requirements relating to materials: reaction to fire Requirements for building elements (principal structural and secondary non-structural elements): fire resistance, enhanced by passive protection Requirements related to layout of access and measures for active protection. It is essential to take account of these requirements from the initial stages of design. To consider fire protection requirements as an afterthought could result in significant costs or even call into question the actual design. 6.2.2 Reaction to fire Certain materials can speed up the development of fire. Table 6.1 gives the European classifications for reaction to fire of building materials. Steel, a non-combustible material, is classified as A1.
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