The determination of optimum fire protection engineering solutions at present is a predominantly subjective based process. An analytical technique is offered to evaluate risk and the manager's aversion toward risk to better employ the risk management options of loss transfer, loss absorption, and loss reduction.An engineering method presently exists for numerically evaluating a relative level of risk in any building. The flame movement part of the method involves the determination of the probability of success in terminating a fire within each space of a building. The effectiveness of each barrier surrounding the space, also can be evaluated whether it be a floor, ceiling, wall, or an empty void.An illustrative case study has been offered to demonstrate the incorporation of the engineering method into a decision analysis of possible alternatives based on the risk attitude of the decision maker. This case study illustrates how the three risk management options can be considered rationally and quantitatively. THE ENGINEERING METHOD AND RISK MANAGEMENTThere exists today a detailed engineering method (1) which, regardless of size or occupancy, can evaluate in a consistent manner any building. Through the application of this engineering method, a COPE (*) evaluation is performed which yields relative assessments of risk. Once the fire risk of a particular building is quantified, the appropriate parties can analyze possible risk management solutions. The evaluation of these components yields a probability value in the form of an L-curve. The L-curve is a graphical representaion of the cumulative probability (from 0.0 to 1.0) that a fire will be limited to the space being considered. limited, in this sense, means that the fire will not propagate beyond the area which has been evaluated. Figure 1 shows typical L-curves. This paper will concentrate its use of the engineering method on the Flame Movement Analysis. We wish to evaluate the likelihood that a fire will be limited to an area of a building. This likelihood is based on four engineering method parameters which evaluate COPE: an evaluation of the hazard present --the I curve; the automatic suppression system--the A-curve; manual fire fighting--the M~curve, and barrier effectiveness; either physical or spatial.(*) COPE is acronym for the class of construction, occupancy, installed fire protection systems, and external exposures of a building.
The state of the art of earthquake and fire protection engineering have advanced to the point where it is now possible to identify and, in many instances, mitigate sources of post-earthquake fire. A rapid and a detailed technique can be used to identify these hazards in industrial facilities. A probabilistic engineering method can be used to estimate the fire safety of a plant. Carried further, this method can be used to predict the annual loss from earthquake-induced fires.
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