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Strengthening of large diameter singel dowel joints
SP – Sveriges Provnings- och Forskningsinstitut.
SP – Sveriges Provnings- och Forskningsinstitut.
2010 (English)Report (Refereed)
Abstract [en]

A preliminary study for implementation of a novel truss node is presented. For this purpose, the load-slip behaviour of double-shear loaded single large dowel joints was investigated. Out of a total of 26 laboratory shear tests, 5 were performed on non-reinforced specimens. The remaining 21 tests were performed on specimens reinforced by means of self-tapping screws. All laboratory tests were conducted under monotonic quasi-static loading. The distance between the dowel and the loaded edge of the timber element was considerably smaller than the minimum distance suggested by building codes. The influence of both i) the placement and ii) the diameter of the reinforcing screws on the load-slip behaviour of the joint was studied. The study shows that the scatter in test results is considerably reduced when reinforcing screws are used. The study also shows that the reinforcing screws prevent the joint to fail due to premature splitting. Thus, due to the presence of the reinforcing screws, no reduction of load-carrying capacity of the dowel caused by the short distance between dowel and loaded edge of the timber element needs to be applied. Further, the reinforced specimens exhibited a very ductile load-slip behaviour and - after the first drop in the load-slip curve occurred - the joints still showed a significant reserve of load-carrying capacity.

Place, publisher, year, edition, pages
2010. , 22 p.
Series
SP Rapport, ISSN 0284-5172 ; 2010:14
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-4896Local ID: 10984ISBN: 978-91-86319-52-6 (print)OAI: oai:DiVA.org:ri-4896DiVA: diva2:962535
Available from: 2016-09-07 Created: 2016-09-07Bibliographically approved

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CiteExportLink to record
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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
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