Structural and fire behaviour of a new light gauge steel wall system


Autoria(s): Gunalan, Shanmuganathan; Mahendran, Mahen
Contribuinte(s)

Kodur, Venkatesh

Data(s)

02/06/2010

Resumo

Fire design is an essential element of the overall design procedure of structural steel members and systems. Conventionally the fire rating of load-bearing stud wall systems made of light gauge steel frames (LSF) is based on approximate prescriptive methods developed on the basis of limited fire tests. This design is limited to standard wall configurations used by the industry. Increased fire rating is provided simply by adding more plasterboards to the stud walls. This is not an acceptable situation as it not only inhibits innovation and structural and cost efficiencies but also casts doubt over the fire safety of these light gauge steel stud wall systems. Hence a detailed fire research study into the performance and effectiveness of a recently developed innovative composite panel wall system was undertaken at Queensland University of Technology using both full scale fire tests and numerical studies. Experimental results of LSF walls using the new composite panels under axial compression load have shown the improvement in fire performance and fire resistance rating. Numerical analyses are currently being undertaken using the finite element program ABAQUS. Measured temperature profiles of the studs are used in the numerical models and the results are used to calibrate against full scale test results. The validated model will be used in a detailed parametric study with an aim to develop suitable design rules within the current cold-formed steel structures and fire design standards. This paper will present the results of experimental and numerical investigations into the structural and fire behaviour of light gauge steel stud walls protected by the new composite panel. It will demonstrate the improvements provided by the new composite panel system in comparison to traditional wall systems.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/31645/

Publicador

DEStech Publications, Inc./Michigan State University

Relação

http://eprints.qut.edu.au/31645/1/c31645.pdf

http://www.egr.msu.edu/sif10/

Gunalan, Shanmuganathan & Mahendran, Mahen (2010) Structural and fire behaviour of a new light gauge steel wall system. In Kodur, Venkatesh (Ed.) Proceedings of The 6th International Conference Structures in Fire, DEStech Publications, Inc./Michigan State University, Michigan State University, East Lansing, MI, pp. 43-50.

http://purl.org/au-research/grants/ARC/DP0986575

Direitos

Copyright 2010 DEStech Publications, Inc./Michigan State University

Fonte

Faculty of Built Environment and Engineering; School of Urban Development

Palavras-Chave #090506 Structural Engineering #Fire #Wall #Cold-formed steel #Temperature #Stud
Tipo

Conference Paper