Gebrauchsdauer von Holzbauteilen: Vorhersagen auf Basis eines dreijährigen Monitorings | Service life of timber components: prognosis based on 3 years high-frequency monitoring
2013
Brischke, Christian | Meyer, Linda | Bornemann, Thomas | Bilstein, Maik | Lauenstein, Boris | Lück, Janna-Marcia | Wulf, Christian
Within this study various timber components were monitored highly frequently in terms of wood moisture content and wood temperature over a period of 3 years. The data sets were applied to a logistic dose–response performance model which is based on dose functions considering wood moisture content and temperature as key factors for fungal decay. The response in terms of certain decay levels was used to characterize different limit states and thus the expected service life. Service lives were prognosticated for wooden fence posts, lattices, terrace decking, and façades with different orientations, heights above ground and roof overhangs. Significant differences were found between the various commodities and the three investigated wood species which were Norway spruce (Picea abies Karst.), Scots pine sapwood (Pinus sylvestris L.) and Douglas fir heartwood (Pseudotsuga menziesii Franco).
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