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Large scale travelling fire tests with open ventilation conditions and their effect on the surrounding steel structure– The second fire test
Ulster University, UK.
Ulster University, UK.
ArcelorMittal, Luxembourg.
ArcelorMittal, Luxembourg.
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2022 (English)In: Journal of constructional steel research, ISSN 0143-974X, E-ISSN 1873-5983, Vol. 188, article id 107032Article in journal (Refereed) Published
Abstract [en]

In the frame of the European RFCS (Research Fund for Coal and Steel) TRAFIR (Characterization of TRAvelling FIRes in large compartments) project, three natural fire tests in a large compartment were conducted at Ulster University. The aim of this investigation was to understand the conditions in which the travelling fires develop and to study the impact of such fires on the surrounding steel structure. This paper provides details of the second fire test where the size of the openings was reduced to induce different ventilation conditions in comparison to the first fire test. During the test, behaviour of the travelling fire was observed and the gas temperatures at different levels and locations were recorded. The influence of travelling fires on the surrounding structure is studied in terms of the temperatures recorded in the selected steel columns and beams. The influence of change in the ventilation conditions is presented and highlighted through the comparison of results of the second fire test with those recorded earlier during the first fire test. It was found that the travelling fires produce non-uniform temperatures in the compartment irrespective of the ventilation conditions although the magnitude of this non-uniformity is related with the opening sizes. This non-uniformity exists along the length as well as along the height of the test compartment. It was found that for reduced opening sizes, more heat is retained within the compartment which induces higher temperatures in the surrounding steel structure. The transient heating of the surrounding structure caused by travelling fires should be considered while performing the structural fire design of large compartments. The results obtained during the test are state-of-the-art and will help in understating the behaviour of travelling fires and their influence on the surrounding structure which will help to devise fire design methods for future use.

Place, publisher, year, edition, pages
Elsevier Ltd , 2022. Vol. 188, article id 107032
Keywords [en]
Beams in travelling fires, Columns in travelling fire, Large natural fire tests, Steel structure, Travelling fire tests, Fires, Steel structures, Beam in traveling fire, Column in traveling fire, Fire tests, Large natural fire test, Natural fire, Traveling fire test, Travelling fires, Ventilation
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:ri:diva-56905DOI: 10.1016/j.jcsr.2021.107032Scopus ID: 2-s2.0-85118888704OAI: oai:DiVA.org:ri-56905DiVA, id: diva2:1613622
Note

 Funding details: University of Edinburgh, ED; Funding details: Ulster University, UU; Funding details: Research Fund for Coal and Steel, RFCS, 754198; Funding text 1: This work was carried out in the frame of the TRAFIR project with funding from the Research Fund for Coal and Steel (grant N?754198). Partners are ArcelorMittal, Li?ge University, the University of Edinburgh, RISE Research Institutes of Sweden and the University of Ulster. The authors also wish to acknowledge the support of companies Sean Timoney & Sons Ltd., FP McCann Ltd., Saverfield Ltd. and Crossfire Ltd.; Funding text 2: This work was carried out in the frame of the TRAFIR project with funding from the Research Fund for Coal and Steel (grant N°754198 ). Partners are ArcelorMittal, Liège University, the University of Edinburgh, RISE Research Institutes of Sweden and the University of Ulster. The authors also wish to acknowledge the support of companies Sean Timoney & Sons Ltd. , FP McCann Ltd. , Saverfield Ltd. and Crossfire Ltd .

Available from: 2021-11-23 Created: 2021-11-23 Last updated: 2023-05-22Bibliographically approved

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