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Calculation of Steel Temperature in Open Cross Sections Based on Fire Exposure from CFD
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2015 (English)In: The 13th Nordic Steel Construction Conference: NSCC-2015 / [ed] Markku Heinisuo; Jari Mäkinen, Tempere: Tampere University of Technology, Department of Civil Engineering , 2015, p. 195-196Conference paper, Meeting abstract (Refereed)
Abstract [en]

Evaluation of steel temperature for small and complex structural elements directly in FDS introduces local effects which can lead to over prediction of the solid temperatures. The sol-id temperature calculation in FDS is based on a one dimensional assumption and cannot handle all the aspects of heat loss due to conduction. FDS is therefore likely to over predict the temperature in, for example, the web in open cross sections. In this paper, this issue is demonstrated and handled with by the use of shadow effects in FE analysis. Two different methods handling the local effects are presented. The different methods show different lev-els of accuracy presenting a more complete method for thermal response calculations based on numerical calculations of experimental data.

Place, publisher, year, edition, pages
Tempere: Tampere University of Technology, Department of Civil Engineering , 2015. p. 195-196
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
URN: urn:nbn:se:ltu:diva-32491Local ID: 70153570-9bf6-42c9-a762-ce58dc5b964dISBN: 978-952-15-3578-9 (print)ISBN: 978-952-15-3579-6 (electronic)OAI: oai:DiVA.org:ltu-32491DiVA, id: diva2:1005725
Conference
Nordic Steel Construction Conference : 23/09/2015 - 25/09/2015
Note
Godkänd; 2015; 20151001 (joasan)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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