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    Fire Performance of Connections in Laminated Veneer Lumber (2007)

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    Theses / Dissertations
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    http://hdl.handle.net/10092/1131
    http://dx.doi.org/10.26021/2143
    
    Thesis Discipline
    Fire Engineering
    Degree Name
    Master of Engineering in Fire Engineering
    Publisher
    University of Canterbury. Civil Engineering
    ISSN
    1173-5996
    Collections
    • Engineering: University of Canterbury Fire Engineering Programme Research Publications [98]
    • Engineering: Theses and Dissertations [2892]
    Authors
    Chuo, Terence Chung Biau
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    Abstract

    The embedment strength of timber with respect to exposure temperature has not been widely studied. Some studies have suggested that the timber totally loses its embedment strength when the timber temperature reaches 300℃. This research concentrates on the embedment strength study of Laminated Veneer Lumber (LVL) timber product exposed to elevated temperatures up to 250℃ using singly bolted connections. Experiments showed that the embedment strength of LVL decreased at a constant rate from 0.08 kN/mm² to 0.025 kN/mm² once the bolt temperature increased from ambient conditions. The embedment strength was then assumed to remain at strength of 0.025 kN/mm² as the bolt temperature continues to increase from 120℃. The difference between the estimated failure load based on Johansen's Equations and the experimental failure load for the connections tested under fire conditions was less than 30%. The estimation was based on bolt strength reduction using NZS 3404, the experimental charring rate and the experimental embedment strength. The predicted failure mode agreed with experimental for all types of connection.

    Keywords
    Embedment strength; fire performance; bolted connections
    Rights
    Copyright Terence Chung Biau Chuo
    https://canterbury.libguides.com/rights/theses

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    • Fire Performance of Connections in Laminated Veneer Lumber 

      CHUO, Terence Chung Biau (University of Canterbury, 2007)
      The embedment strength of timber with respect to exposure temperature has not been widely studied. Some studies have suggested that the timber totally loses its embedment strength when the timber temperature reaches ...
    • Fire performance of bolted connections in laminated veneer lumber 

      Moss, P.J.; Buchanan, A.H.; Fragiacomo, M.; Lau, P.H.; Chuo, T.C. (University of Canterbury. Civil and Natural Resources Engineering, 2009)
      This paper describes an investigation into the fire performance of bolted tensile connections in laminated veneer lumber (LVL) made from radiata pine. The capacity of the bolted connections depends on the embedding ...
    • Fire Resistance of Epoxy-grouted Steel Rod Connections in Laminated Veneer Lumber (LVL) 

      Harris, Stuart (University of Canterbury, 2004)
      Epoxy-grouted steel rods are becoming increasingly popular for connections in structural timber in glue-laminated timber (glulam) and laminated veneer lumber (LVL). This research focuses on the fire resistance of these ...
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