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Influence of Wooden Board Strength Class on the Performance of Cross-laminated Timber Plates Investigated by Means of Full-field Deformation Measurements
Vienna University of Technology, Austria.
Vienna University of Technology, Austria.
Linnaeus University, Faculty of Technology, Department of Building Technology.ORCID iD: 0000-0002-5333-0682
Vienna University of Technology, Austria.
2014 (English)In: Strain, ISSN 0039-2103, E-ISSN 1475-1305, Vol. 50, no 2, 161-173 p.Article in journal (Refereed) Published
Abstract [en]

Although cross-laminated timber (CLT) plates are increasingly used in high-performance building structures, a tailored composition of them or, at least, a performance-based classification scheme is not available. Especially, the influence of the quality of the ‘raw’ material (wooden boards) on the load carrying capacity of CLT elements is hardly investigated yet. For this reason, within this work, bending tests on 24 CLT plates consisting of wooden boards from three different strength classes have been carried out. The global mechanical response as well as the formation of failure mechanisms were investigated, including a full-field deformation measurement system, which allowed for a qualitatively as well as quantitatively identification of board failure modes. Interestingly, no influence of the board strength class on the elastic limit load of the CLT plates was observed, but the situation was different for the load displacement history beyond the elastic regime, where basically, two different global failure mechanisms could be distinguished. The obtained knowledge about the ‘post-elastic’ behaviour of CLT plates may serve as a basis for the optimisation of CLT products and the development or improvement of design concepts, respectively. Moreover, the obtained large ‘post-elastic’ capacity reserve of CLT consisting of high quality boards could lead to a better utilisation of the raw material.

Place, publisher, year, edition, pages
2014. Vol. 50, no 2, 161-173 p.
Keyword [en]
board strength class, cross-laminated timber, full-field displacement measurement systems, plate bending tests, plate failure
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-36104DOI: 10.1111/str.12077ISI: 000333023200006Scopus ID: 2-s2.0-84896393222OAI: oai:DiVA.org:lnu-36104DiVA: diva2:734448
Available from: 2014-07-17 Created: 2014-07-17 Last updated: 2016-12-13Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf