PSI - Issue 78

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ScienceDirect

Procedia Structural Integrity 78 (2026) 222–229

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers Keywords: Frictional slip mechanisms; Analytical approach; Experimental testing; Wooden structural elements; Cyclic behavior. Abstract Slip-friction connectors are increasingly recognized as an effective strategy for enhancing the seismic performance of structures. Conventional solutions, however, commonly rely on bolt pretension to activate frictional resistance, which may lead to draw backs such as preload losses over time, installation challenges, and concerns regarding long-term reliability. To overcome these limitations, this study proposes an innovative slip-friction connector that replaces bolt pretension with an elastic restoring force provided by a precompressed spring. The mechanical behavior of the proposed device is investigated through analytical modeling and experimental testing. An analytical solution is developed based on equilibrium equations, capturing the interaction between frictional sliding and elastic restoring effects in the force-displacement response. Cyclic tests are performed to validate the model and assess the energy dissipation capacity of the connector. Experimental results show excellent agreement with the analytical predictions, confirming the robustness of the proposed formulation. The findings of this study suggest that the proposed connector offers a promising solution for seismic applications in timber structures, with particular reference to cross-laminated timber (CLT) panels. In this context, the device may serve as an alternative to conventional connections, such as hold-downs, providing an ef ficient and tunable energy dissipation mechanism. The compact design, combined with the possibility of tailoring the mechanical response through spring stiffness adjustment, offers significant versatility for implementation in timber construction. Moreover, the simplicity of the analytical model ensures its practical applicability for design and engineering purposes. XX ANIDIS Conference A novel slip-friction connector for seismic applications in timber structures: analytical and experimental investigation Matteo Pelliciari a, ∗ , Angelo Aloisio b , Roberto Tomasi c , Lars Vidar Jakobsen Næsse c , Francesco Boggian c , Pasqualino Gualtieri b a DIEF, Department of Engineering “Enzo Ferrari”, via P. Vivarelli 10, 41125 Modena, Italy b Department of Civil, Construction-Architectural and Environmental Engineering, Universita` degli Studi dell’Aquila, L’Aquila, 67100, Italy c Faculty of Science and Technology, Norwegian University of Life Sciences, As, Norway

∗ Corresponding author. Tel.: +393334858333. E-mail address: matteo.pelliciari@unimore.it

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers 10.1016/j.prostr.2025.12.029