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Development of Beam to Beam Connectors Made of Densified Veneer Wood

Aurand, Simon ORCID iD icon; Blaß, Hans Joachim

Abstract (englisch):

In an ongoing research project at KIT Timber Structures and Building Construction an innovative beam to beam connector made of densified veneer wood (DVW) is developed. In a first part of the project different surface modifications were examined aiming at an increased friction between connector and timber member. The modifications included sanding and sandblasting, coating with mineral particles using different bonding agents as well as milling with different milling tools. The static coefficient of friction between the modified densified veneer wood and softwood was determined in tests. Mean friction coefficients greater than 1.0 and characteristic values of up to 0.9 were found. This means a significant increase compared to the value of 0.25 given in Eurocode 5 taking the rope effect into account. In a second part the behaviour of the modified surfaces combined with inclined screws was examined. The positive influence of the surface modification was confirmed. An increase in load-bearing capacity of up to 40% was established. Lastly, a first prototype of a beam to beam connector was manufactured and tested. The results are now used for an improved second prototype.

Postprint §
DOI: 10.5445/IR/1000138331
Veröffentlicht am 10.08.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Versuchsanstalt für Stahl, Holz und Steine (VAKA)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 09.08.2021
Sprache Englisch
Identifikator KITopen-ID: 1000138331
Erschienen in World Conference on Timber Engineering (WCTE 2020), Santiago, Chile, August 24- 27, 2020
Veranstaltung World Conference on Timber Engineering (WCTE 2020), Santiago de Chile, Chile, 24.08.2020 – 27.08.2020
Schlagwörter densified veneer wood; DVW; coefficient of friction; system connector; beam to beam connector
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