A Framework for Selecting Design Fires in Performance Based Fire Safety Engineering

Borg, Audun; Njå, Ove; Torero, José L.

doi:10.1007/s10694-014-0454-x

Cited by 13 publications

(6 citation statements)

References 19 publications

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“…Therefore, fire design parameters must be defined and converged on a fuel load tion, an occupancy and inventory function, or both [3]. These options are not realis Therefore, fire design parameters must be defined and converged on a fuel load function, an occupancy and inventory function, or both [3]. These options are not realistic for wildfires due to several reasons.…”

Section: Wildfire Thermal Actions In Dwellingsmentioning

confidence: 99%

“…Wildfires in wildland-urban interface (WUI) areas spread rapidly over vegetation and buildings as fuel elements. So, at this point, the main problem of fires in WUI areas is the ignition of surrounding buildings or structural elements [2] Therefore, the best alternative to reduce the severity of the attack on dwellings is to reduce the potential ignition [3]. As a result, governments and the scientific community have studied fires and their behavior in recent decades in order to learn how to prevent, contain, and reduce the public's impact in terms of lives and property damage [4].…”

Section: Introductionmentioning

confidence: 99%

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Report on Existing Fireproof Construction Guidelines for Dwellings against Wildfires

et al. 2023

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This work presents a state-of-the-art review of existing fireproof construction guidelines for dwellings against wildfires. The most important wildfire-proof construction guidelines and codes for dwellings are presented, and these are later associated with existing fire engineering chapters associated with building codes. It was concluded that the variability in this subject is very high, and the approach to classifying the thermal effects in construction still lags behind scientific consensus. Moreover, the constructive requirements depend severally on the country’s building code when assessing the fireproof requirements for wildfire. Moreover, the thermal actions of wildfires in dwellings are presented and compared with classical ISO-834 standard fire curves, in which the maximum equivalent fire exposure time can range from 2 to 4 h depending on the country’s code. The key contributions of this work consist of (i) thoroughly disseminating codes and guidelines to promote scientific discussion in order to advance the wildfire fireproof standards dedicated to WUI; (ii) emphasizing the void in current codes in order to promote conversation between future researchers.

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Section: Wildfire Thermal Actions In Dwellingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Report on Existing Fireproof Construction Guidelines for Dwellings against Wildfires

et al. 2023

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“…Design fires are chosen based on project specific parameters (e.g. atrium and open office plan) in combination with rules of good practice [38,39].…”

Section: Parameter and Scenario Inputmentioning

confidence: 99%

Development of an Integrated Risk Assessment Method to Quantify the Life Safety Risk in Buildings in Case of Fire

et al. 2018

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An integrated probabilistic risk assessment methodology is developed for the purpose of quantifying the life safety level of people present in buildings in the context of fire safety design. Multiple risk based concepts and tools have been developed in previous research to objectify performance based design methods for simple building types and layouts. However, these available models lack an integrated approach for challenging building designs and moreover they are not adequately coupled, most often resulting in a significant computational effort. Hence, there is a need for a practical and efficient framework for dealing with complicated building layouts and different occupancy types. Therefore, a computationally efficient quantitative risk assessment method is developed that provides a framework by combining deterministic sub-models and probabilistic techniques to quantify the fire safety level by means of failure probabilities, individual and societal risk. The deterministic framework is supported by analytical and numerical models. The probabilistic framework is supported by response surface modelling, sampling techniques and limit state design. Following the theoretical description of the model, a case study of a five storey commercial shopping mall of 25000 m 2 is elaborated and discussed as proof of concept. Multiple fire, building and occupant variables are implemented in the model. Three different fire safety designs are compared, resulting in quantified risks between 10 -6 and 10 -8 . The case study proves the validity of the newly developed integrated methodology for this type of buildings and its benefits in fire safety engineering.

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“…The location of a fire source is an important parameter in the design of fire scenes, and statistical methods can be used to determine the probable fire location. If the relevant statistics are not available, the fire load distribution and the users' situation at the scene can be used to determine the location of the fire source . In this study, it is assumed that the midspan area on the first floor has been assigned as the fire location to study a fire extinguishing system using water and the overall mechanical response process of large‐span steel structure under a local abrupt drop in temperature.…”

Section: Fire Scenarios Design For Large‐span Structuresmentioning

confidence: 99%

Stability analysis of large‐span steel truss structure under local cooling from fire extinguishing system

Zhang

Zhu

Yuan

et al. 2017

Structural Design Tall Build

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Summary In case of a fire in large‐span steel structure buildings, the firefighters usually use water to cool the steelwork. However, during the cooling by the spraying water, the collapse of these structures is unclear. In this paper, a large‐span center is taken as an example to study the overall mechanical response process under local cooling conditions in fire. The Fire Dynamics Simulator has been used to investigate the temperature field distribution rule of large‐span buildings under fire. Using the coupled thermal‐mechanical method to study the overall mechanical response process of steel structure under local abrupt drop in temperature, displacement and stress variations of the large‐span steel structure under local cooling have been analyzed. Results of this study show that the temperature distribution in large‐span structures is nonuniform in fire. Using spraying water to cool the structural members in fire can cause the structural stress field redistributed that may lead to further damage to the structure.

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A Framework for Selecting Design Fires in Performance Based Fire Safety Engineering

Cited by 13 publications

References 19 publications

Report on Existing Fireproof Construction Guidelines for Dwellings against Wildfires

Report on Existing Fireproof Construction Guidelines for Dwellings against Wildfires

Development of an Integrated Risk Assessment Method to Quantify the Life Safety Risk in Buildings in Case of Fire

Stability analysis of large‐span steel truss structure under local cooling from fire extinguishing system

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