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Temperature rise of cold-formed steel built-up back-to-back column under standard fire
Fadhluhartini Muftah1, Mohd Syahrul Hisyam Mohd Sani2, Shahrin Mohammad3, Ngian, Shek Poi4, Mahmood Md Tahir5.
Cold-formed steel (CFS) has been used for various applications in building structure. Due to
its many advantages, the uses of CFS can be widened to build new or to renovate existing
single one or two families private homes. However, the fire resistance of the CFS is a critical
issue whereby inclined to lose its vigour when it is exposed to fire, compared to hot-rolled
steel member. This study takes the opportunity to investigate the application of this material
as column members subjected to the standard fire. Four columns were tested. One column
with a static load was tested under the ambient condition, while the three other columns
were loaded at different degrees of utilisation under the standard ISO 834 fire conditions.
The increases of temperature on the column surface were monitored using thermocouple
Type K and the analyses of this thermocouple reading was taken to evaluate the mean
temperature of the column. The temperature behaviours of back-to-back column for all
degrees of utilisation showed that, the web was a lower temperature compared to the
flange due to the greater thickness of the web. Meanwhile, the failure temperature of the
CFS could reach up to 651.0 ºC for 30.0 % degree of utilisation with 8.0 minutes of resistant
time.
Affiliation:
- Universiti Teknologi MARA, Malaysia
- Universiti Teknologi MARA, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
|
CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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