Full-scale fire experiments on load-bearing cold-formed steel walls lined with different panels

Wei Chen, Jihong Ye, Yu Bai, Xiao Ling Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

88 Citations (Scopus)


Cold-formed steel (CFS) wall systems were increasingly used as primary load-bearing structural components in residential and industrial buildings. Previous studies were mainly to investigate the fire performance of non-load bearing CFS wall systems lined with gypsum plasterboards. In order to improve the fire performance of load-bearing CFS wall systems more efficiently, this paper presented a detailed experimental investigation on five full-scale CFS walls lined with double layers of three different fire resistant panels on both sides, including fire-resistant gypsum plasterboard, bolivian magnesium board and calcium silicate board. The results showed a noticeable disadvantage of the calcium silicate board due to explosive spalling at high temperatures, and this might cause severe safety issues in an actual fire situation. For CFS walls lined with gypsum plasterboard as the face layer and bolivian magnesium board as the base layer on both sides, different load ratios may result in different failure modes, and the fire resistance time would be more than 90 min when the load ratio was less than 0.65. It was also demonstrated that the fire performance of bolivian magnesium board was superior to that of the fire resistant gypsum plasterboard, therefore the former may be recommended to be used in CFS structures to replace gypsum plasterboards as the base layer.

Original languageEnglish
Pages (from-to)242-254
Number of pages13
JournalJournal of Constructional Steel Research
Publication statusPublished - Dec 2012
Externally publishedYes


  • Bolivian magnesium board
  • Calcium silicate board
  • Cold-formed steel load-bearing wall
  • Fire resistant gypsum plasterboard
  • Full scale fire experiment
  • Load ratio

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Metals and Alloys


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