LOADBEARING CAPACITY OF LSF WALLS UNDER FIRE EXPOSURE

MATTER: International Journal of Science and Technology

View Publication Info
 
 
Field Value
 
Title LOADBEARING CAPACITY OF LSF WALLS UNDER FIRE EXPOSURE
 
Creator Piloto, Paulo A. G.
Khetata, Mohamed S.
Gavilán, Ana B. R.
 
Subject LSF Walls
Fire Resistance
Numerical Simulation
Experimental Tests
 
Description Light steel frame (LSF) (LSF) and prefabricated panels are widely used in loadbearing walls, with direct application to steel framed buildings. These walls are made with steel cold formed sections (studs and tracks) using gypsum plasterboard and other material layers attached to the flanges and sometimes insulation material in the cavities. The fire resistance is usually provided by one or more layer of materials and or by the cavity insulation. This investigation evaluates the fire resistance of the loadbearing walls, from the point of view of insulation (I) and loadbearing capacity (R). Experimental results obtained from partition walls were used into the numerical model to accurately preview the cracking, falling off and the ignition of combustible material. The numerical model was validated under the same fire conditions. The loadbearing capacity is determined using this hybrid model. This model is able to predict an accurate fire resistance for any load level, taking into account the brittle behaviour of gypsum panels and the ignition of combustible materials. The loadbearing decreases with the increase of the load level. A new formula is presented to determine the critical average temperature of the LSF.Article DOI: https://dx.doi.org/10.20319/mijst.2018.43.104124 This work is licensed under the Creative Commons Attribution-Non-commercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
 
Publisher GRDS Publishing
 
Date 2018-11-20
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://grdspublishing.org/index.php/matter/article/view/1668
 
Source MATTER: International Journal of Science and Technology; Vol 4 No 3 (2018): Regular Issue
2454-5880
 
Language eng
 
Relation https://grdspublishing.org/index.php/matter/article/view/1668/2035
 
Rights Copyright (c) 2018 Paulo A. G. Piloto, Mohamed S. Khetata, Ana B. R. Gavilán
 

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