Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Embedment properties of thermally modified spruce timber with dowel-type fasteners
https://orcid.org/0000-0002-5242-8688
https://orcid.org/0000-0002-6909-2025
Highlights Thermal modification mainly affected the embedment strength parallel to the grain. Density–embedment strength relationships still hold after the treatment. Influence of moisture content on embedment properties followed similar trends after thermal modification. Larger influence of load direction on embedment strength after thermal modification. Smaller influence of calculation method on embedment strength after the treatment.
Abstract This study investigates the effect of thermal modification, ThermoWood Thermo-D treatment versus no treatment, on the embedment properties of Norway spruce timber (Picea abies [L.] Karst.) with dowel-type fasteners. The test specimens were reinforced to prevent splitting of the wood. The influence of density, load direction, test specimen configuration (full hole versus half hole), moisture content, gauge points and calculation method were also evaluated. Thermal modification primarily affected the embedment strength parallel to the grain, which was ∼ 25% higher after thermal modification, mainly due to the change in physical properties because of the treatment, i.e. the lower equilibrium moisture content. The influence of the investigated parameters on embedment properties of thermally modified spruce followed similar trends as for unmodified spruce. It was for example seen that the density–embedment strength relationships still hold after the treatment despite the decrease in density and the increase in embedment strength parallel to the grain. However, after thermal modification, the influence of load direction on embedment strength was ∼30% larger and the influence of calculation method (yield versus ultimate strength) on embedment strength perpendicular to the grain was ∼10% smaller.
Embedment properties of thermally modified spruce timber with dowel-type fasteners
https://orcid.org/0000-0002-5242-8688
https://orcid.org/0000-0002-6909-2025
Highlights Thermal modification mainly affected the embedment strength parallel to the grain. Density–embedment strength relationships still hold after the treatment. Influence of moisture content on embedment properties followed similar trends after thermal modification. Larger influence of load direction on embedment strength after thermal modification. Smaller influence of calculation method on embedment strength after the treatment.
Abstract This study investigates the effect of thermal modification, ThermoWood Thermo-D treatment versus no treatment, on the embedment properties of Norway spruce timber (Picea abies [L.] Karst.) with dowel-type fasteners. The test specimens were reinforced to prevent splitting of the wood. The influence of density, load direction, test specimen configuration (full hole versus half hole), moisture content, gauge points and calculation method were also evaluated. Thermal modification primarily affected the embedment strength parallel to the grain, which was ∼ 25% higher after thermal modification, mainly due to the change in physical properties because of the treatment, i.e. the lower equilibrium moisture content. The influence of the investigated parameters on embedment properties of thermally modified spruce followed similar trends as for unmodified spruce. It was for example seen that the density–embedment strength relationships still hold after the treatment despite the decrease in density and the increase in embedment strength parallel to the grain. However, after thermal modification, the influence of load direction on embedment strength was ∼30% larger and the influence of calculation method (yield versus ultimate strength) on embedment strength perpendicular to the grain was ∼10% smaller.
Embedment properties of thermally modified spruce timber with dowel-type fasteners
https://orcid.org/0000-0002-5242-8688
https://orcid.org/0000-0002-6909-2025
Highlights Thermal modification mainly affected the embedment strength parallel to the grain. Density–embedment strength relationships still hold after the treatment. Influence of moisture content on embedment properties followed similar trends after thermal modification. Larger influence of load direction on embedment strength after thermal modification. Smaller influence of calculation method on embedment strength after the treatment.
Abstract This study investigates the effect of thermal modification, ThermoWood Thermo-D treatment versus no treatment, on the embedment properties of Norway spruce timber (Picea abies [L.] Karst.) with dowel-type fasteners. The test specimens were reinforced to prevent splitting of the wood. The influence of density, load direction, test specimen configuration (full hole versus half hole), moisture content, gauge points and calculation method were also evaluated. Thermal modification primarily affected the embedment strength parallel to the grain, which was ∼ 25% higher after thermal modification, mainly due to the change in physical properties because of the treatment, i.e. the lower equilibrium moisture content. The influence of the investigated parameters on embedment properties of thermally modified spruce followed similar trends as for unmodified spruce. It was for example seen that the density–embedment strength relationships still hold after the treatment despite the decrease in density and the increase in embedment strength parallel to the grain. However, after thermal modification, the influence of load direction on embedment strength was ∼30% larger and the influence of calculation method (yield versus ultimate strength) on embedment strength perpendicular to the grain was ∼10% smaller.
Embedment properties of thermally modified spruce timber with dowel-type fasteners
van Blokland, Joran (Autor:in) / Florisson, Sara (Autor:in) / Schweigler, Michael (Autor:in) / Ekevid, Torbjörn (Autor:in) / Bader, Thomas K. (Autor:in) / Adamopoulos, Stergios (Autor:in)
31.10.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Embedment properties of thermally modified spruce timber with dowel-type fasteners
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