Review of the fire performance of LSF walls

Sivakumar, Kesawan & Mahendran, Mahen (2013) Review of the fire performance of LSF walls. 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 LSF walls are commonly made of cold-formed steel frames, gypsum plasterboards and insulation, and their fire performance is an important aspect of design. Many experimental and numerical studies have been conducted on the fire performance of LSF walls at the Queensland University of Technology (QUT). These studies have shown that increasing the number or thickness or quality of gypsum plasterboards has improved the fire resistance ratings (FRR) of LSF walls while the use of cavity insulation has reduced their FRR. Therefore new LSF wall systems with external insulation sandwiched between two layers of plasterboards were proposed, which provided higher FRR than cavity insulated walls. There are also other parameters that can improve the fire performance of LSF walls such as the steel type, stud geometry and depth, type of screw fasteners used, joints in the plasterboard and the plasterboard fall off time. This paper presents a review of the fire performance of LSF walls as a function of these parameters based on our research at QUT. Their effects on both the thermal and structural performance of LSF walls are discussed in detail and suitable improvements are recommended, for example, improved plasterboard joint types.

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ID Code: 67029
Item Type: Conference Paper
Refereed: Yes
Keywords: Fire resistant rating, LSF walls, cold-formed steel, gypsum plasterboard, Fire testing
DOI: 10.3850/978-981-07-7137-9_252
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 02:32
Last Modified: 09 Dec 2014 16:31

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