Full-scale fire resistance tests of lightweight steel framed floor systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU148964" target="_blank" >RIV/00216305:26110/23:PU148964 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0263823123005955" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263823123005955</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tws.2023.111117" target="_blank" >10.1016/j.tws.2023.111117</a>
Alternative languages
Result language
angličtina
Original language name
Full-scale fire resistance tests of lightweight steel framed floor systems
Original language description
As cold-formed steel profiles are increasingly used for load-bearing structural systems, their fire design requires specific attention due to their thin-walled nature and high slenderness. In some specific applications such as in storage hall floor systems, these structures are used without sheathing or thermal protection on the fire-exposed side. Yet, there is a lack of data from fire resistance tests on full-scale load-bearing thin-walled steel structures, especially with directly exposed steel. This article describes two standard fire resistance tests on full-scale light gauge steel frame floors made of cold-formed steel lipped channel girders and joists topped by chipboard panels. The experimental program was designed to investigate the fire resistance of the unprotected girders. A specificity of this program was that the girders were subjected to a low load level to probe the ability to achieve without passive fire protection a 30-min fire resistance rating typical for storage hall structures in the Czech Republic. The absence of protection resulted in differences in thermal gradients and bracing compared to common fire tests, as well as a very low degree of utilization leading to an expected failure temperature higher than 800 degrees C. The results showed that the two floors remained stable during the 30 min with limited deflections, but failed the deflection rate criteria after 24 and 22 min, respectively. Comparison is provided with the calculation methods from the Eurocodes. The presented results provide new data on the response of full-scale, unprotected coldformed steel floor systems subjected to fire, which can be used to calibrate numerical models and fire design methods outside of the range currently covered by the codes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/FW01010206" target="_blank" >FW01010206: Improved design of thin-walled cold formed steel beams in terms of load carrying capacity and fire resistance</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
THIN-WALLED STRUCTURES
ISSN
0263-8231
e-ISSN
1879-3223
Volume of the periodical
192
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
„“-„“
UT code for WoS article
001106834900001
EID of the result in the Scopus database
2-s2.0-85169894453