Performance assessment of through-tenon timber joints under tension loads

摘要

This paper aims to characterize the force-deformation response of through-tenon wood-wood connections subjected to tensile loads. Four beech LVL timber specimen groups with variations in the fiber orientation, and the tab insertion angle (45 degrees, and 60 degrees) are tested. All of the specimens experienced a brittle failure mode. The 45 degrees-angled specimens provide a more secure interlocking mechanism compared to the 60 degrees-angled specimens. Overall, fiber-parallel 60 degrees-angled specimens have the highest yield and ultimate strengths. Increasing the insertion angle from 45 degrees to 60 degrees decreases the ductility and slip modulus. Changing the fiber orientation from parallel to perpendicular does not have a significant effect on the slip modulus and ductility, however, there is a decrease in the yield and ultimate strengths. Finally, based on the overall results from the experiments, the joints are classified as having low ductility. (C) 2019 Elsevier Ltd. All rights reserved.