Numerical modelling of load bearing LSF Walls under fire conditions

Poologanathan, Keerthan & Mahendran, Mahen (2012) Numerical modelling of load bearing LSF Walls under fire conditions. In Structures in Fire - SIF'2012: Proceedings of the 7th International Conference on Structures in Fire, Eidgenossische Technische Hochschule Zurich and EMPA Materials Science and Technology , Zurich, Switzerland, pp. 205-214.

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Abstract. Fire safety of light gauge cold-formed steel frame (LSF) stud walls is significant in the design of buildings. In this research, finite element thermal models of both the traditional LSF wall panels with cavity insulation and the new LSF composite wall panels were developed to simulate their thermal behaviour under standard and real design fire conditions. Suitable thermal properties were proposed for plasterboards and insulations based on laboratory tests and literature review. The developed models were then validated by comparing their results with available fire test results. This paper presents the details of the developed finite element models of load bearing LSF wall panels and the thermal analysis results. It shows that finite element models can be used to simulate the thermal behaviour of load bearing LSF walls with varying configurations of insulations and plasterboards. Failure times of load bearing LSF walls were also predicted based on the results from finite element thermal analyses.

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ID Code: 52787
Item Type: Conference Paper
Refereed: Yes
Funders: ARC
Keywords: Load Bearing LSF Walls, Finite Element Analysis (FEA), Gypsum Plasterboard, Thermal Performance, Standard Fire, Real Design Fire
DOI: 10.3929/ethz-a-007050197
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 27 Jul 2012 04:47
Last Modified: 05 Oct 2014 03:19

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