The partial fire protection of steel members: a comparative study
Journal of Structural Fire Engineering
ISSN: 2040-2317
Article publication date: 15 May 2023
Issue publication date: 10 November 2023
Abstract
Purpose
This paper provides a summary of the issues in the passive fire protection of steel structures. Types of passive fire protection and the material properties of protection members and steel members are described. The paper deals with the possibility of partial fire protection for secondary steel beams, in cases where, due to possible membrane action, it is not necessary to apply passive protection to the entire beams.
Design/methodology/approach
Studies of partially fire-protected steel structures are compared, and results from studies with different input data are summarized. A fire experiment was conducted to investigate the effect of partial passive protection in a small-scale furnace. Based on the findings of the experiment, numerical models were prepared using Ansys Mechanical.
Findings
The results are summarized, and a partial fire protection length of 500 mm is recommended. Various partial fire protection lengths were compared, and the temperature development of the steel contactors was compared using a protection length of 500 mm. At the end of the paper, options for partial passive protection of steel beams are presented.
Originality/value
Extended paper from ASFE2021 based on selection.
Keywords
Acknowledgements
The support of CTU grant SGS22/141/OHK1/3T/11 Safety and sustainability of timber and steel structures exposed to fire is gratefully acknowledged.
Citation
Šejna, J., Dobrovolný, P. and Wald, F. (2023), "The partial fire protection of steel members: a comparative study", Journal of Structural Fire Engineering, Vol. 14 No. 4, pp. 575-597. https://doi.org/10.1108/JSFE-01-2023-0001
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited