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Fire exposed light-frame timber walls: A study on the effect of geometrical reduction of a vertically loaded I-section stud
SP- Sveriges Tekniska Forskningsinstitut, Trätek.
2009 (English)Report (Refereed)
Abstract [en]

A wooden I-stud as a member of a light-frame timber wall is modelled with reducing flange width to simulate fire exposure. The stud is loaded with a vertical load and the effect of restraints from one gypsum board and the top and bottom rail is considered. Geometry and material values are chosen to correspond to a stud with flanges of solid wood and web of OSB (oriented strand board). A model with shell and beam elements is implemented in Abaqus. A buckling analysis is performed on a perfectly straight stud and then a geometrically nonlinear analysis is performed on a stud with an initial curvature. Both the buckling analysis and the geometrically nonlinear analysis show that even a large reduction of the flange width results only in moderate changes of the load-carrying capacity of the structure. In the report diagrams are presented from the geometrically nonlinear analysis where the critical load is easy to read once a failure stress is determined, but an estimate of the the failure stress is not given here.

Place, publisher, year, edition, pages
2009. , 41 p.
Series
Reports (School of Technology and Design, Växjö University) ; 51
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-5498Local ID: 10801ISBN: 9789176366585 (print)OAI: oai:DiVA.org:ri-5498DiVA: diva2:963323
Available from: 2016-09-08 Created: 2016-09-08Bibliographically approved

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CiteExportLink to record
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  • apa
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