5_定量火災風險評估中文版-資料下載頁
2025-03-09 15:05本頁面
【正文】 re are in general two ways of conducting systematic quantitative fire risk assessments: ? (1) using a checklist to go through a list of potential fire hazards and the quantitative assessment of their fire risks。 ? (2) using an event tree to go through a set of the potential fire scenarios and the quantitative assessment of their fire risks. ? In both the checklist and eventtree methods, the oute is a list of potential fire hazards, or fire scenarios, and their assessed fire risk values. ? Summation of all these individual risk values gives an overall fire risk value in a building that can be used for parisons with those of alternative fire safety designs. ? It should be noted that there are semiquantitative assessments, where only one of the two parameters (probability or consequence) is assessed quantitatively. The other parameter that is not assessed quantitatively is assessed qualitatively (see Chapter 4). ? This type of assessment is neither qualitative nor quantitative. In this chapter, we discussed only quantification of both the probability and consequence parameters. ? The quantification of both the parameters was based on statistical data if they are available, or subjective judgment if such data are not available. ? More fundamental and rational approaches to quantification, including the use of mathematical modeling, will be discussed in later chapters. ? Review Questions（復習題目：自愿完成） ? Use the checklist method in Table to do a quantitative fire risk assessment for a night club fire. Change ‘no smoking material’ to ‘no firework on stage’ and change ‘evacuation drills’ to ‘prior evacuation instructions before show starts’. Make your assumption on what the residual multiplication factors should be. Review the night club fire discussion in Chapter 3. ? Use the eventtree method in Figure to find the overall residual risk multiplier for a fire protection system that includes ‘sprinklers’ protection only, but not ‘no smoking material’ or ‘regular evacuation drills’ fire protection measures. ? Change both the failure probabilities of ‘no smoking material’ and ‘regular evacuation drills’ to 100 %. ? Use the eventtree method in Figure to find the residual risk multiplier for a fire protection system that does not include ‘sprinkler’ protection but has ‘no smoking material’ and ‘regular evacuation drills’ fire protection measures. Compare the overall residual risk multiplier with that in . ? This is a parison of the risk reduction of either installing a sprinkler system, or implementing better fire prevention or occupant evacuation plans. ? Change the failure probability of sprinklers to 100 %. 演講完畢，謝謝觀看！
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