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Draghållfasthet i historiska träförband
Linnaeus University, Faculty of Technology, Department of Building Technology.
2019 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Tensile strength in historical wooden joints (English)
Abstract [sv]

Detta arbete utfördes för att studera hållfasthet hos furudymlingar och klippspik i historiska träförband. Ingen beräkningsstandard finns idag i Sverige för förband med dymling i furu eller klippspik. Genom att utföra dragprov i kombination med beräkningar enligt både svensk och internationell standard skall olika formlers lämplighet bedömas.

 

Resultaten visar att formler har en tendens att underskatta dymlingarnas sannolika draghållfasthet, men vissa av dem skulle kunna tillämpas enligt vad denna studie visar. Dymlingens beteende och styrka varierar beroende på dess diameter och virkesmaterial. En större dymlingsstorlek har inte alltid lett till en högre draghållfasthet. Samma brottmod uppstod i samtliga förband.

Abstract [en]

This thesis was carried out to study tensile strength in pine dowels and cut nails in historical wooden joints. Today no standard of calculations for joints with pine dowels or cut nails exists. By performing tensile tests in combination with calculations according to both Swedish and international standard, the suitability of different formulas will be graded.

 

The results show that the formulae have a tendency to underestimate the dowels probable tensile strength, although some of them could be applied according to what this study has shown. Further the behavior and strength between different diameter sizes and wooden parts vary unreliably since a greater dowel size didn’t always lead to a higher tensile strength. The same type of failure appeared in all of the joints.

Place, publisher, year, edition, pages
2019. , p. 94
Series
Rapporter: Fakulteten för teknik, Linnéuniversitetet ; 1
Keywords [sv]
historiska träförband, dymlingar, furu, draghållfasthet, brottmod, klippspik
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:lnu:diva-87041OAI: oai:DiVA.org:lnu-87041DiVA, id: diva2:1339727
External cooperation
Tyréns
Subject / course
Byggteknik
Educational program
Civil Engineering Programme, Building and Construction, 180 credits
Supervisors
Examiners
Available from: 2019-08-19 Created: 2019-07-30 Last updated: 2019-08-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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