Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis
A full-scale, non-uniform natural fire test on a cold-formed steel portal frame building is described. The results of the fire test are used to validate a non-linear, elasto-plastic, finite element shell idealisation, for the purposes of later forming the basis of a performance-based design approach...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Published: |
2014
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| Online Access: | https://www.istructe.org/journal/volumes/volume-92-(2014)/issues/issue-10/cold-formed-steel-portal-frames-in-fire-full-scale http://hdl.handle.net/20.500.11937/7041 |
| _version_ | 1848745252155817984 |
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| author | Johnston, R. Lim, J. Lau, Hieng Ho Xu, Y. Sonebi, M. Armstrong, C. Switzer, C. Mei, C. |
| author_facet | Johnston, R. Lim, J. Lau, Hieng Ho Xu, Y. Sonebi, M. Armstrong, C. Switzer, C. Mei, C. |
| author_sort | Johnston, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A full-scale, non-uniform natural fire test on a cold-formed steel portal frame building is described. The results of the fire test are used to validate a non-linear, elasto-plastic, finite element shell idealisation, for the purposes of later forming the basis of a performance-based design approach for cold-formed steel portal frames at elevated temperatures. The test building had a span of 8m, height-to-eaves of 2.2m, length of 10m, with a frame spacing of 2.5m. The member and connections of the frame were constructed entirely from cold-formed steel and the eaves and apex joints were classified as semi-rigid. In order to reduce the influence of diaphragm action, the cladding was detailed to act independently from the frames. The frame collapsed with an eventual inwards asymmetrical collapse mechanism at 714°C, with collapse being due to member buckling rather than failure of the screws or joints. The collapse temperature predicted using the shell idealisation was 682°C, with a deformed shape similar to that observed in the fire test. |
| first_indexed | 2025-11-14T06:14:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-7041 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:14:24Z |
| publishDate | 2014 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-70412017-01-30T10:57:13Z Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis Johnston, R. Lim, J. Lau, Hieng Ho Xu, Y. Sonebi, M. Armstrong, C. Switzer, C. Mei, C. A full-scale, non-uniform natural fire test on a cold-formed steel portal frame building is described. The results of the fire test are used to validate a non-linear, elasto-plastic, finite element shell idealisation, for the purposes of later forming the basis of a performance-based design approach for cold-formed steel portal frames at elevated temperatures. The test building had a span of 8m, height-to-eaves of 2.2m, length of 10m, with a frame spacing of 2.5m. The member and connections of the frame were constructed entirely from cold-formed steel and the eaves and apex joints were classified as semi-rigid. In order to reduce the influence of diaphragm action, the cladding was detailed to act independently from the frames. The frame collapsed with an eventual inwards asymmetrical collapse mechanism at 714°C, with collapse being due to member buckling rather than failure of the screws or joints. The collapse temperature predicted using the shell idealisation was 682°C, with a deformed shape similar to that observed in the fire test. 2014 Journal Article http://hdl.handle.net/20.500.11937/7041 https://www.istructe.org/journal/volumes/volume-92-(2014)/issues/issue-10/cold-formed-steel-portal-frames-in-fire-full-scale restricted |
| spellingShingle | Johnston, R. Lim, J. Lau, Hieng Ho Xu, Y. Sonebi, M. Armstrong, C. Switzer, C. Mei, C. Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis |
| title | Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis |
| title_full | Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis |
| title_fullStr | Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis |
| title_full_unstemmed | Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis |
| title_short | Cold-formed steel portal frames in fire: Full-scale testing and finite element analysis |
| title_sort | cold-formed steel portal frames in fire: full-scale testing and finite element analysis |
| url | https://www.istructe.org/journal/volumes/volume-92-(2014)/issues/issue-10/cold-formed-steel-portal-frames-in-fire-full-scale http://hdl.handle.net/20.500.11937/7041 |