PSI - Issue 81

Valentin Aleksiievets et al. / Procedia Structural Integrity 81 (2026) 422–429

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Fig. 10. Deformation diagram of nail joints 8 under low-cycle loads

Based on the obtained data, which are the results of the study of the operation of nail joints under the action of low-cycle loads, it can be concluded that the bearing capacity of dry nail joints under the influence of low-cycle loads is higher than the bearing capacity determined by the current regulatory documents for a single load. Fig. 11 shows the actual bearing capacity of nail joints in the first load cycles at levels corresponding to low-cycle adaptation, and the minimum bearing capacity determined by regulatory documents.

Fig. 11. Bearing capacity of nailed joints in the first cycles of low-cycle loading

4. Conclusions 1.New experimental data on the operation of nail joints under low-cycle loads have been obtained. 2.The diagram of the operation of the T- Δ connection in low-cycle compression at all load levels at each of the loading cycles has a hyperbolic character. 3. The dependence “secant modul us of elasticity – load” in low -cycle compression under all loading modes is a linear dependence with high reliability. 4.After one hundred and twenty cycles of low-cycle loading with the operating mode, stabilization of the total deformations of the joint crushing occurred. References Abed, J., Rayburg, S., Rodwell, J., Neave, M., 2022. A review of the performance and benefits of mass timber as an alternative to concrete and steel for improving the sustainability of structures. Sustainability 14(9), 5570. Albrektas, D., Juciene, M., Dobilaite, V., 2020. The influence of thermal modification on the resistance to water impact properties and strength of wood used in outdoor conditions. Wood research 65(3), 353-364. Aleksiievets, V., Gomon, S., Aleksiievets, I., Homon, S., Ivaniuk, A., Zadorozhnikova, I., Bandura, I., 2024. Influence of thicknesses of outer and middle elements on the performance of nail connections. Procedia Structural Integrity 59, 710-717.