Fire resistance of light gauge steel frame wall systems lined with gypsum plasterboards

Ariyanayagam, Anthony D. & Mahendran, Mahen (2015) Fire resistance of light gauge steel frame wall systems lined with gypsum plasterboards. In Fernando, Dilum, Teng, Jin-Guang, & Torero, Jose (Eds.) Proceedings of the Second International Conference on Performance-based and Life-cycle Structural Engineering (PLSE 2015), School of Civil Engineering, The University of Queensland, Brisbane Convention and Exhibition Centre, Qld, pp. 973-982.

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Abstract

Light gauge steel frame (LSF) wall systems are increasingly used in residential and commercial buildings as load bearing and non-load bearing elements. Conventionally, the fire resistance ratings of such building elements are determined using approximate prescriptive methods based on limited standard fire tests. However, recent studies have shown that in some instances real building fire time-temperature curves could be more severe than the standard fire curve, in terms of maximum temperature and rate of temperature rise. This has caused problems for safe evacuation and rescue activities, and in some instances has also lead to the collapse of buildings earlier than the prescribed fire resistance. Therefore a detailed research study into the performance of LSF wall systems under both standard fire and realistic fire conditions was undertaken using full scale fire tests to understand the fire performance of different LSF wall configurations. Both load bearing and non-load bearing full scale fire tests were performed on LSF walls configurations which included single layer, double layer, externally insulated wall panels made up of different steel sections and thicknesses of gypsum plasterboards. The non-load bearing fire test results were utilized to understand the factors affecting the fire resistance of LSF walls, while loading bearing fire test results led to development of simplified methods to predict the fire resistance ratings of load bearing LSF walls exposed to both standard and realistic design fires. This paper presents the results of full scale experimental study and highlights the effects of standard and realistic fire conditions on fire performance of LSF walls.

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ID Code: 91582
Item Type: Conference Paper
Refereed: Yes
Keywords: Light gauge steel frame walls, Realistic design fire curves, Fire Resistance Level (FRL), load bearing walls, non-load bearing walls, gypsum plasterboards, studs
ISBN: 9781742721477
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 05 Jan 2016 01:25
Last Modified: 06 Jan 2016 01:26

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