Temperature heterogeneity during travelling fire on experimental building

Horová, Kamila; Jána, Tomáš; Wald, František

doi:10.1016/j.advengsoft.2013.05.001

Cited by 37 publications

(20 citation statements)

References 3 publications

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“…Validation of fire spread predictions is very ambitious; nevertheless, in the literature it is apparent that none of the travelling fire design methods has been rigorously compared against any real travelling fire experiments so far . This section demonstrates the application of the ETFM framework to the representation of fire spread in a real building, that is, the Veselí Travelling Fire Test building (a two‐storey steel‐composite structure, as shown in Figure ). It is achieved by performing a numerical investigation of the thermal response of the structural elements, that is, by comparing the computed member temperatures from the ETFM framework and the test results.…”

Section: Application Of the Etfm Framework For The Veselí Travelling mentioning

confidence: 99%

“…Figure compares the results of previous full‐scale natural fire tests carried out in large compartments, where a clear travelling fire development had been identified or targeted, in order to investigate the relationship between the inverse opening factor A T /( A w H 1/2 ) and the maximum average gas‐phase temperature T g ,max near the ceiling level. The full‐scale travelling fire experiments considered include the British Steel Technical/Fire Research Station 1993 fire test series, the Building Research Establishment tests in the Cardington Large Building Test Facility in 1995 to 1996 (Test 6, Simulated Office), the Moinuddin and Thomas fire test series in 2005, the Veselí Travelling Fire Test in 2011, the Edinburgh Tall Building Fire Tests (tests number 11 and 12, using wood sticks) in 2013, the Malveira Fire Test in 2014, the Tisova Fire Test in 2015, and the TRAFIR‐RISE Fire Test in 2018. The detailed test set‐up of these travelling fire experiments has been reviewed by the authors in a previous work, except for the TRAFIR‐RISE Fire Test which is so far unpublished.…”

Section: Introductionmentioning

confidence: 99%

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An extended travelling fire method framework for performance‐based structural design

et al. 2020

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Summary This paper presents the extended travelling fire method (ETFM) framework, which considers both energy and mass conservation for the fire design of large compartments. To identify its capabilities and limitations, the framework is demonstrated in representing the travelling fire scenario in the Veselí Travelling Fire Test. The comparison between the framework and the test is achieved through performing a numerical investigation of the thermal response of the structural elements. The framework provides good characterization of maximum steel temperatures and the relative timing of thermal response curves along the travelling fire trajectory, though it does not currently address a non‐uniform fire spread rate. The test conditions are then generalized for parametric studies, which are used to quantify the impact of other design parameters, including member emissivity, convective heat transfer coefficient, total/radiative heat loss fractions, fire spread rate, fire load density, and various compartment opening dimension parameters. Within the constraints of this study, the inverse opening factor and total heat loss prove to be the most critical parameters for structural fire design.

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Section: Application Of the Etfm Framework For The Veselí Travelling mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An extended travelling fire method framework for performance‐based structural design

et al. 2020

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“…Despite the fore-mentioned, results of the numerical simulation are sufficiently applicable to investigate an impact of non-uniform temperature resolution on a structural behaviour. Detailed description of the numerical simulation and its validation can be found in [1].…”

Section: Numerical Simulationmentioning

confidence: 99%

“…As flames spread within the floor to consume fuel, regions with high temperatures and regions with elevated temperatures are created. In [1] several studies presenting the experimental evidence of non-uniform temperature across the floor area of a compartment can be found.…”

Section: Introductionmentioning

confidence: 99%

Temperature Heterogeneity of Travelling Fire and Its Influence on Composite Steel-Concrete Floor

Horová

Wald

2015

CEJ

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In order to follow modern trends in contemporary building architecture, which is moving off the limits of current fire design models, assumption of homogeneous temperature conditions used for structural fire analysis needs to be revised. In this paper fire dynamics of travelling fire is investigated experimentally by conducting fire test in two-storey experimental building. To evaluate the impact of travelling fire on the mechanical behaviour of a structure, the spatial and temporal evolution of the gas temperature calculated in NIST code FDS, which was validated to experimental measurements, is applied to the composite floor of dimensions 9.0 m by 9.0 m. Mechanical behaviour of the composite slab highly affected by regions of high temperatures and areas with only elevated temperatures is solved in code Vulcan. To highlight the severity of spreading fire causing non-uniform temperature conditions, which after-effects differ from traditional methods, a comparison of both methods is introduced. The calculation of mechanical behaviour of the composite floor is repeated in a series of three different thermal loading cases. Results of all cases are then compared in terms of vertical displacement and axial force in several positions of the composite floor.

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“…There have been three further large scale travelling fire tests performed from 2011 to 2015. In 2011, to investigate how the travelling fires impact the steel structural components especially for beam-to-column connections, a full-scale travelling fire test was conducted at the upper floor of a two-storey steel composite building in Veselí, in the Czech Republic [12]. In 2013 a series of experiments were conducted at the Building Research Establishment (BRE) in UK as part of the EPSRC funded research project 'Real Fires for Safety Design of Tall Buildings' [13].…”

Section: Introductionmentioning

confidence: 99%

A critical review of “travelling fire” scenarios for performance-based structural engineering

Dai

Welch

Usmani

2017

Fire Safety Journal

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Many studies of the thermal and structural behaviour for large compartments in fire carried out over the past two decades show that fires in such compartments have a great deal of non-uniformity (e.g. Stern-Gottfried et al. [1]), unlike the homogeneous compartment temperature assumption in the current fire safety engineering practice. Furthermore, some large compartment fires may burn locally and tend to move across entire floor plates over a period of time. This kind of fire scenario is beginning to be idealized as travelling fires in the context of performance-based structural and fire safety engineering. This paper presents a literature review of the travelling fire research topic and its state of the art, including both the experimental and theoretical work for the past twenty years. It is found that the main obstacle of developing the travelling fire knowledge is the lack of understanding of the physical mechanisms behind this kind of fire scenario, which requires more reasonable large scale travelling fire experiments to be set up and carried out. The demonstration of the development of a new travelling fire framework is also presented in this paper, to show how current available experimental data hinder the analytical model development, and the urgent need that the new travelling fire experiments should be conducted.

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Temperature heterogeneity during travelling fire on experimental building

Cited by 37 publications

References 3 publications

An extended travelling fire method framework for performance‐based structural design

An extended travelling fire method framework for performance‐based structural design

Temperature Heterogeneity of Travelling Fire and Its Influence on Composite Steel-Concrete Floor

A critical review of “travelling fire” scenarios for performance-based structural engineering

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