Experimental study on the fire performance of superior LSF wall systems

Sivakumar, Kesawan & Mahendran, Mahen (2013) Experimental study on the fire performance of superior LSF wall systems. In Liew, Richard J.Y. & Lee, Siew Chin (Eds.) Proceedings of the 10th Pacific Structural Steel Conference (PSSC 2013) – Advancements and Achievements in Structural Steel, Research Publishing, Singapore.

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Abstract

Load bearing Light Gauge Steel Frame (LSF) walls are commonly made of conventional lipped channel sections and gypsum plasterboards. Recently, innovative steel sections such as hollow flange channel sections have been proposed as studs in LSF wall frames with a view to improve their fire resistance ratings. A series of full scale fire tests was then undertaken to investigate the fire performance of the new LSF wall systems under standard fire conditions. Test wall frames made of hollow flange section studs were lined with fire resistant gypsum plasterboards on both sides, and were subjected to increasing temperatures as given by the standard fire curve on one side. Both uninsulated and cavity insulated walls were tested with varying load ratios from 0.2 to 0.6. This paper presents the details of this experimental study on the fire performance of LSF walls and the results. Test results showed that the walls made of the new hollow flange channel section studs have a superior fire performance in comparison to that of lipped channel section stud walls. They also showed that the fire performance of cavity insulated walls was inferior to that of uninsulated walls. The reasons for this fire behaviour are described in this paper.

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ID Code: 67030
Item Type: Conference Paper
Refereed: Yes
Keywords: LSF Walls, Fire testing, cold-formed steel, hollow flange section, Fire resistant rating, Experimental study, gypsum boards
DOI: 10.3850/978-981-07-7137-9_251
ISBN: 9789810771379
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Research Publishing Services
Deposited On: 07 Feb 2014 02:23
Last Modified: 06 May 2014 06:16

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