The influence of travelling fires on a concrete frame

Law, Angus; Stern-Gottfried, Jamie; Gillie, Martin; Rein, Guillermo

doi:10.1016/j.engstruct.2011.01.034

Cited by 61 publications

(65 citation statements)

References 13 publications

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“…methods as applied to a generic concrete frame 42m x 28m x 3.6m per floor [37]. University of Edinburgh [36].…”

Section: Discussionmentioning

confidence: 99%

“…Jonsdottir et al [36] took this updated version and examined resultant steel temperatures. Collaboration with structural fire engineers led to work [37] exploring the response of a generic concrete frame to travelling fires, including a detailed sensitivity study. Stern-Gottfried and Rein [Part II of this paper] then developed the methodology further by extending the examination of the concrete frame via simplified heat transfer and identified the critical parameters for applying the method to design.…”

Section: Travelling Fires Methodology -University Of Edinburghmentioning

confidence: 99%

“…The work of Law et al [37], a collaborative research project between the fire engineers SternGottfried and Rein and structural engineers Law and Gillie, applied the TFM to a generic concrete frame. The temperature field was generated as explained in Section 1.4.2 and then applied to a FEM of the concrete frame.…”

Section: Concrete Framementioning

confidence: 99%

“…Detailed sensitivity analyses of the input parameters of TFM have also been conducted [Part II,37], showing that the structural design and fuel load have a larger impact on the structural behaviour than any numerical or physical parameter required for the methodology.…”

Section: ̇=̇"mentioning

confidence: 99%

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Travelling fires for structural design–Part I: Literature review

Stern-Gottfried

Rein

2012

Fire Safety Journal

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125

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Close inspection of accidental fires in large, open-plan compartments reveals that they do not burn simultaneously throughout the whole enclosure. Instead, these fires tend to move across floor plates as flames spread, burning over a limited area at any one time. These fires have been labelled "travelling fires". Current structural fire design methods do not account for these types of fires. Despite these observations, fire scenarios most commonly used for the structural design of modern buildings are based on traditional methods that assume uniform burning and homogenous temperature conditions throughout a compartment, regardless of its size. This paper is Part I of a two part article and is a literature review of travelling fire research.A brief background to the traditional methods that assume uniform fires is given along with critiques of that assumption, such as the heterogeneity of compartment temperatures and the observation of travelling fires in both accidental events and controlled tests. The research in travelling fires is reviewed, highlighting the pioneering work in the field to date. The main challenge in developing tools for incorporating travelling fires into design is the lack of large scale test data. Nonetheless, significant progress in the field has been made and a robust methodology using travelling fires to characterise the thermal environment for structural analysis has been developed. The research in quantifying the structural response to travelling fires is also reviewed.

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“…methods as applied to a generic concrete frame 42m x 28m x 3.6m per floor [37]. University of Edinburgh [36].…”

Section: Discussionmentioning

confidence: 99%

Section: Travelling Fires Methodology -University Of Edinburghmentioning

confidence: 99%

Section: Concrete Framementioning

confidence: 99%

Section: ̇=̇"mentioning

confidence: 99%

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Travelling fires for structural design–Part I: Literature review

Stern-Gottfried

Rein

2012

Fire Safety Journal

Self Cite

125

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show abstract

“…Neither of these fire scenarios represents well a real fire in a modern, open plan, multi-storey building [12,13], let alone a parametric (natural) design fire [14] such as are increasingly being used in modern fire engineered building designs. The materials of construction specified in modern designs are different in a host of ways from those that have been considered in older tests, mostly with respect to the properties of the infill concrete.…”

Section: Introductionmentioning

confidence: 99%

Fire Resistance Design of Unprotected Concrete Filled Steel Hollow Sections: Meta-Analysis of Available Furnace Test Data

Rush¹,

Bisby²,

Melandinos³

et al. 2011

Fire Safety Science - Proceedings of the 10th International Sym

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Concrete filled steel hollow structural sections are an efficient, sustainable, and attractive option for both ambient temperature and fire resistance design of columns in multi-storey buildings and are increasingly common in modern construction practice around the world. Whilst the design of these sections at ambient temperatures is reasonably well understood, and models to predict the strength and failure modes of these elements correlate well with observations from tests, this appears not to be true in the case of fire resistant design. This paper assesses the statistical confidence in available fire resistance design models/approaches that are used in North America and Europe by performing a meta-analysis which compares the available experimental data from large-scale standard fire tests performed around the world against fire resistance predictions from design codes. It is shown that available design approaches carry a large uncertainty of prediction, suggesting that they fail to properly account for fundamental aspects of the underlying mechanics during fire. Current North American design approaches for CFS columns are shown to be considerably less conservative, on average, than those used in Europe.

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Structural Fire Analysis of One‐storey Steel‐framed Buildings with Steel Claddings

Ma¹,

Havula²,

Mela³

et al. 2021

ce papers

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Traditionally the structural stability of steel building frames is ensured by frame action or bracing elements. Recent European research projects have demonstrated that significant cost savings can be achieved, if cladding panels forming the building envelope are used to provide stability. The purpose of the paper is to investigate the possible stabilization effect of steel structures by steel claddings in fire, without additional wind bracings using Finite Element Method. The Finite Element analyses for full‐scale steel‐framed buildings with steel claddings under fires are still challenging due to large number of elements in the steel claddings. In this paper, the equivalent orthotropic shell element is used to model the trapezoidal roof sheeting, and composite shell element with soft core is used to model the sandwich panel in the cool compartment. Due to the delamination of inner steel face in fire, the sandwich panels in the fire compartment can be either neglected or modeled with two‐layer composite shell ignoring the inner steel sheet. The comparative study is performed, and the results suggest that the difference is small and the sandwich panels in the fire compartment can be neglected. The stabilization effect of steel claddings in fire is studied by the comparison of deformation and force responses between buildings with traditional steel bracings and with steel cladding only. In case of ISO fire, the fire resistance of entire one‐storey building with steel claddings only is 22% longer than the one with traditional steel bracings.

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The influence of travelling fires on a concrete frame

Cited by 61 publications

References 13 publications

Travelling fires for structural design–Part I: Literature review

Travelling fires for structural design–Part I: Literature review

Fire Resistance Design of Unprotected Concrete Filled Steel Hollow Sections: Meta-Analysis of Available Furnace Test Data

Structural Fire Analysis of One‐storey Steel‐framed Buildings with Steel Claddings

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