【正文】
afety measures may be more appropriate for more plex designs. Table 14 – Matrix variablesBuildings greater than 25m The fire safety matrix for buildings greater than 25m high is presented in Table 15. The matrix provides the remended fire safety measures for apartment buildings with respect to sprinkler protection and the emergency strategy. The matrix provides a simple method of determining some of the minimum fire safety requirements of an apartment building. It can also be used to evaluate which type of emergency strategy would be most effective, or when sprinklers would be beneficial given certain building conditions. The justification of the remended fire safety measures is pvided in Section . Table 15 – Fire safety matrix: buildings greater than 25mthe above matrix are designed to provide at least two levels of protection for the occupants. As the building height increases, the number of fire protection measures also increases to provide additional levels of protection and maintain the level of safety for the occupants. Table 16 summarises the occupants who are most at risk and the levels of fire safety provided bythe above fire safety matrix. Table 17 provides the cell key for identifying the designated cells in Table 16. This key remains the same for all cases presented. Table 16 – Levels of fire safety (buildings greater than 25m) Table 17 – Cell key Buildings greater than three storeys and less than 25m The fire safety matrix for buildings greater than three stories and less than 25m high is presented in Table 18. The justification of the remended fire safety measures is provided in Section . Table 18 – Fire safety matrix: buildings greater than three storeys and less than 25mTable 19 – Levels of fire safety (buildings greater than three storeys and less than 25m) Buildings less than three storeys The fire safety matrix for buildings less than three stories is presented in Table 20. The justification of the remended fire safety measures is provided in Section . Table 20 – Fire safety matrix: buildings less than three storeysTable 21 – Levels of fire safety (buildings less than three storeys) 14 DISCUSSION OF FIRE SAFETY MATRIX The fire safety matrix considers the building height, sprinkler protection and the emergency strategy as the primary variables. This is due to the high influence that the interactions of these variables have on other fire safety measures. In addition to this, the fire engineer can specify the emergency strategy and sprinkler protection for the building that will provide flexibility to the matrix. Therefore once the extent of these three variables has been determined the remaining fire safety systems can be selected to suit the building. The objective of the fire safety remendations is to address key issues that result from a given set of building characteristics, while providing multiple levels of protection for occupants in the event of a fire. This provides a backup or redundancy in the design in the event of one part of the system failing