Show simple item record

dc.contributor.authorGilbert, Benoit P
dc.contributor.authorZhang, Hao
dc.contributor.authorBailleres, Henri
dc.date.accessioned2019-06-10T01:31:54Z
dc.date.available2019-06-10T01:31:54Z
dc.date.issued2019
dc.identifier.issn0167-4730
dc.identifier.doi10.1016/j.strusafe.2019.02.001
dc.identifier.urihttp://hdl.handle.net/10072/383991
dc.description.abstractThis paper presents the reliability analysis of Laminated Veneer Lumber (LVL) beams manufactured from veneers recovered from early to mid-rotation (juvenile) subtropical hardwood plantation logs, with plantations established either for sawn timber applications or pulpwood production. While these logs have a high number of natural defects (knots, gum veins, grain deviation, etc.), are considered of low quality and have little to no commercial value, they produce high strength Veneered Based Composite products, such as Plywood and LVL. Yet, the reliability of these products is unknown. In this paper, the relationship between the reliability index and the capacity factors, also referred to as “resistance factors”, used in design equations of such LVL beams in both edge and flat bending is investigated taking into account the load duration effects (damage accumulation). The relationship is presented for six different beam sizes, four grades and three hardwood species (Gympie messmate (Eucalyptus cloeziana), spotted gum (Corymbia citriodora) and southern blue gum (Eucalyptus globulus)) using the strength distribution of the beams recently quantified by the authors. Parametric studies on five main design load combinations stipulated in the Australian standard and three rates of damage accumulation, based on the data available in the literature, are conducted. Results show that the reliability index is highly sensitive to the damage accumulation rate and that the “Dead + Sustained and Extraordinary live loads” and “Dead + Wind + Sustained live loads” load combinations govern the choice of the capacity factor. Recommendations are made on the appropriate capacity factors to be used for various service categories of structures. The proposed capacity factors are found to be 5%–12% lower than the ones currently used in Australia for the LVL beams manufactured from mature softwood logs, as opposed to juvenile hardwood logs as in the proposed products.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofpagefrom88
dc.relation.ispartofpageto99
dc.relation.ispartofjournalSTRUCTURAL SAFETY
dc.relation.ispartofvolume78
dc.subject.fieldofresearchCivil Engineering
dc.subject.fieldofresearchcode0905
dc.titleReliability of laminated veneer lumber (LVL) beams manufactured from early to mid-rotation subtropical hardwood plantation logs
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2018. Structural Safety. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher, ELSEVIER SCIENCE BV, 2018. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorGilbert, Benoit
gro.griffith.authorBailleres, Henri


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record