Load-Bearing Behaviour of Rods Glued in Hardwood
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Glued-in rods represent a joint type commonly used in timber engineering when high strength, rigid, and aesthetic connections are looked for. While there is extensive research on glued-in rods in softwood, there is still a lack of research on hardwood. Due to climate change and expected reorganisation in the structure of forests, it is to be assumed, that significantly more hardwoods will be used in the construction industry.
Within the recently completed research project TACITUS, funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) through the AiF/iVTH agency, the focus was set on the structural use of hardwood for timber engineering applications, in particular in the context of glued-in rods (GiR). The project was carried out by three research institutions — accompanied by a large industry committee (see infobox).
Acknowledgments and outlook
The research project TACITUS (18266 N) was supported by research agency iVTH (Internationaler Verein für Technische Holzfragen e. V.) and funded by the Federal Ministry of Economics and Energy (BMWi) through the AiF within the framework of the programme for the promotion of joint industrial research (IGF) on the basis of a decision of the German Bundestag, which the authors want to acknowledge. Similarly, the authors want to acknowledge the significant material and intellectual contribution of the cooperation partners involved and the members of the industrial committee accompanying the project for their excellent cooperation. The final report with all results can be obtained from the iVTH. In the meantime, inquiries can also be made to the research centres (project coordination: Oliver Bletz-Mühldorfer). A follow-up project, TACITUS FAQs 2018, is currently being initiated, in which the long-term behaviour of engineered hardwood GiR subjected to environmental loading is focused.
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