Risk Assessment

Magnusson, Sven Erik

doi:10.3801/iafss.fss.5-41

Cited by 13 publications

(9 citation statements)

References 4 publications

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“…Summation (7) indicates the 'total' risk from multiple scenarios. This type of fire risk analysis, commonly referred to as probabilistic risk assessment (PRA) or quantitative risk analysis (QRA), is widely used in the process of chemical industry and for fire safety assessments of nuclear facilities (Apostolakis 1993), and is beginning to see broader application in fire protection engineering applications (SFPE 1999 and2000;Magnusson et al 1995;Magnusson 1995;Frantzich 1998).…”

Section: Fire Safety Assessment By Risk Analysis Description Of the mentioning

confidence: 99%

A Comparison of Methods Used for Fire Safety Evaluation

Šakėnaitė

2010

Mokslas - Lietuvos Ateitis

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The paper considers the problem of fire safety assurance by means of fire risk indexing and fire risk assessment. Attention is focused on the comparison of these two principal approaches and the possibilities of applying them in a combined set. The paper is aimed at defining, comparing and analyzing fire safety assessment by applying the aforementioned approaches. The practicability of both approaches is compared by means of an example considering fire safety of an existing office building. It is stated that fire risk indexing is more practicable than formal risk assessment despite all shortcomings of the former approach. It is highly probable that comprehensive decision-making concerning fire safety assurance will be based on fire risk indexing rather than on formal risk assessment.

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Section: Fire Safety Assessment By Risk Analysis Description Of the mentioning

confidence: 99%

A Comparison of Methods Used for Fire Safety Evaluation

Šakėnaitė

2010

Mokslas - Lietuvos Ateitis

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“…Consensus does not yet exist on what levels of risk are tolerable, on how they should be quantified and expressed, or on how they should be addressed in performance-based fire safety design [59]. This is due in part to the fact that tolerable levels of risk are value issues that scientists and engineers should not be deciding alone [28,59,60]. Society, through participation in the development of reguiations.…”

Section: Level@) Of Tolerable Riskmentioning

confidence: 99%

“…Using probability-and reliability-based design concepts developed in the structural engineering community, these approaches began by considering primarily the structural material, the likely fuel loading, and the likely timetemperature output of a fire, with explicit safety and reliability factors to account for uncertainties. Over time, the concepts that emerged from structural and other engineering disciplines have been applied to the entire building fire safety problem [27,28,29]. As discussed in a key publication on fire risk and uncertainty [27], fire safety engineering can benefit greatly not only from advances in structural reliability engineering, but from quantitative risk assessment (QRA) techniques used in chemical engineering and probabilistic risk assessment (PRA) techniques used in nuclear engineering as well.…”

mentioning

confidence: 99%

International Experience In The Development And Use Of Performance - Based Fire Safety Design Methods: Evolution, Current Situation And Thoughts For The Future

Meacham¹

2000

Fire Safety Science - Proceedings of the 6th International Symp

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Over the past fifty years, fire safety engineering* has grown and developed into an accepted. if not fully mature, engineering discipline. This has been possible for a variety of reasons, including an ever-increasing understanding of fire safety science, continuing development of analytical methods for engineering analysis and design, technological advances in computational tools, and the global movement towards performance-based building and fire regulations. This paper reviews the current state of fire safety engineering by looking at international experiences in the development and use of performance-based fire safety design methods. It discusses the impact of increasing scientific knowledge and the evolution of performance-based fire safety design methods and regulations, and it speculates on what will be required for fire safety engineering to reach maturity as an engineering discipline.KEY WORDS: Performance-based fire safety design, fire safety engineering, performancebased building regulations As used in this paper, the term "fire safety engineering" is synonymous with the terms "fire engineering" and "fire protection engineering," and is defined as the application of science and engineering principles to protect people and their environment from fire. safety design, or some derivative thereof. Why is this so? What has driven the fire safety community to search for means and methods to measure, analyze. describe, and predict performance? In many respects, the movement to performance-based analysis and design is part of the natural evolution of an engineering discipline. By one definition. engineering is the art or science of making practical application of the knowledge of pure science [I]. As the knowledge base grows, the horizon for practical application of the knowledge increases accordingly. When this knowledge base includes understanding how materials, ,'systems. and buildings perform under a variety of conditions. it opens the door to performa

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“…The probabilistic concept and the method of stochastic analysis have been used in engineering designs for traffic, dam and many other engineering fields [3]. Magnusson [4] presented a general summary of the probabilistic methods for risk assessment in the field of fire safety engineering. Applications of these methods for assessing and comparing the adequacy of essentially different fire protection strategies (e.g., sprinklers and compartmentation) can also be found in the literature [5].…”

Section: Introductionmentioning

confidence: 99%

“…Risk is defined as the product of the frequency of event and the expected consequences [6]. Risk assessment is accordingly divided into two main parts: determination of frequency of initiating event and determination of consequences of initiating event occurring [4]. The former involves research and analysis of statistics.…”

Section: Introductionmentioning

confidence: 99%

Stochastic Modelling For Risk Assessment

He¹,

Horasan²,

Taylor³

et al. 2003

Fire Safety Science - Proceedings of the Seventh International

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A probabilistic risk assessment method is described in this paper for the analysis of expected risk to life. The method involves stochastic, as well as deterministic, modelling of building occupant evacuation process and the attainment of untenable conditions due to fires in buildings. Both the number of occupants leaving a building at a given time and the time to untenable conditions are treated as random variables. A general expression for calculating the expected number of death is given. With the postulated Poisson distribution for the number of occupants leaving a building and uniform distribution for the time to untenability, a simple expression for the calculation of the expected number of deaths is obtained. An example is given to illustrate the application of the method.

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Risk Assessment

Cited by 13 publications

References 4 publications

A Comparison of Methods Used for Fire Safety Evaluation

A Comparison of Methods Used for Fire Safety Evaluation

International Experience In The Development And Use Of Performance - Based Fire Safety Design Methods: Evolution, Current Situation And Thoughts For The Future

Stochastic Modelling For Risk Assessment

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