A review of methods for determining structural fire severity—Part II: Analysis and review

Summary There is a risk of a building suffering unsustainable structural damage in the event of a large fire. Therefore, it is necessary to design buildings to withstand expected fires. A widely used simplified calculation method is the so‐called “time‐equivalence” method. There are significant conc...

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Vydané v:Fire and materials Ročník 46; číslo 1; s. 138 - 152
Hlavní autori: MacIntyre, Jonathon D., Abu, Anthony K., Moss, Peter J., Nilsson, Daniel, Wade, Colleen A.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Bognor Regis Wiley Subscription Services, Inc 01.01.2022
Predmet:
Building design
Case studies
Equivalence
Fire damage
fire resistance
fire severity
Methods
Numerical methods
State-of-the-art reviews
structural adequacy
Structural damage
structural fire engineering
Threat evaluation
time‐equivalence
ISSN:0308-0501, 1099-1018
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Shrnutí:Summary There is a risk of a building suffering unsustainable structural damage in the event of a large fire. Therefore, it is necessary to design buildings to withstand expected fires. A widely used simplified calculation method is the so‐called “time‐equivalence” method. There are significant concerns about the suitability of this method. This paper is part II of a twofold study examining the state of the art of time‐equivalence methods. The purpose of this paper is to identify methods and/or analysis concepts which show the potential for use in modern design. A SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis is used for this purpose. However, as there is a large number of time‐equivalence methods to assess, a numerical case study is first undertaken to identify methods which have sufficient accuracy to warrant further study. These analyses found that, while none of the time‐equivalence methods studied have sufficient accuracy for use in their present form, the methods derived using the equal energy concept provide a good basis to model the effects of fire on a structure. This study recommends that a new time‐equivalence method be developed using the equal energy approach.
Bibliografia:ObjectType-Article-1
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ISSN:0308-0501
1099-1018
DOI:10.1002/fam.2961