The high-cycle fatigue behaviour of a timber-to-timber connection with self-tapping screws is examined with the fasteners under bending due to their alignment lateral to the load direction. The cyclic tests were carried out with a sinusoidal non-reversed load (\(R=0.1\)) with a loading frequency of 5 Hz. The examined connection is designed for the quasistatic failure mechanism with two plastic hinges per shear plane according to Johansen’s theory (European Yield Model), which is mirrored in the observed fatigue failure. Based on 30 cyclic tests on four nominal stress levels \(\left( S=\left\{ 0.47,\;0.41,\;0.31,\;0.20 \right\} \right) \) in the finite-life regime the respective Wöhler-curve is obtained, showing high conformity with the test data due to a consideration of the specific density of the individual specimens. It is shown that the examined fasteners show a superior fatigue behaviour under bending compared to axial loading. A simple safe-side approach for the application of Wöhler-curves for axial loading of threaded fasteners to the present case of fastener bending is proposed, extending the field of possible applications for the results of existing and future studies of the behaviour under axial loading.

使用自攻螺钉的木对木连接的高周疲劳性能，是通过检查紧固件在弯曲时由于其在载荷方向上的横向对齐来进行的。循环测试使用正弦非反向负载（\（R = 0.1 \））进行，负载频率为5 Hz。根据Johansen的理论（欧洲屈服模型），所检查的连接设计用于准静态失效机制，每个剪切平面具有两个塑料铰链，这反映在观察到的疲劳失效中。基于对四个名义应力水平\（\ left（S = \ left \ {0.47，\; 0.41，\; 0.31，\; 0.20 \ right \} \ right）\）的30次循环测试在有限寿命条件下，获得了相应的Wöhler曲线，由于考虑了单个样本的比重，因此与测试数据高度吻合。结果表明，与轴向载荷相比，所检查的紧固件在弯曲下表现出优异的疲劳性能。提出了一种简单的安全侧方法，该方法可将Wöhler曲线用于螺纹紧固件的轴向载荷应用到当前紧固件弯曲的情况，从而扩展了可能的应用领域，从而可以用于现有和将来的轴向载荷行为研究结果。