20.500.12556/DKUM-92163 Numerical study on in-plane behaviour of light timber-framed wall elements under a horizontal load impact This study analyses the many different parameters of the in-plane flexibility problem regarding the lateral behaviour of light timber-framed (LTF) wall elements with different types of sheathing material (FPB, OSB, or even reinforced concrete), as well as the thickness of the timber frame elements (internal or external wall elements). The analysis simultaneously considers bending, shear, and timber-to-framing connection flexibility, while assuming stiff-supported wall elements as prescribed by Eurocode 5. Particular emphasis is placed on the sliding deformation between sheathing boards and the timber frame, which can significantly reduce the overall stiffness of LTF wall elements. The influence of fastener spacing (s) on sliding deformation and overall stiffness is comprehensively analysed, as well as the different bending and shear behaviours of the various sheathing materials. The results show that reducing the fastener spacing can significantly improve the stiffness of OSB wall elements, while it is less critical for FPB elements used in mid-rise timber buildings. A comparison of external and internal wall elements revealed a minimal difference in racking stiffness (3.3%) for OSB and FPB specimens, highlighting their comparable performance. The inclusion of RC sheathing on one side of the LTF elements showed significant potential to improve torsional behaviour and in-plane racking stiffness, making it a viable solution for strengthening prefabricated multi-storey timber buildings. These findings provide valuable guidance for optimizing the design of LTF walls, ensuring improved structural performance and extended application possibilities in modern timber construction. timber structures light timber-framed element modelling numerical analysis les konstrukcije lahki elementi z lesenim okvirjem modeliranje numerična analiza true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/buildings © 2025 by the authors Članek v reviji 2025-03-17 11:03:34 2025-03-17 11:03:35 2026-01-09 12:01:28 0000-00-00 00:00:00 2025 0 0 23 str. iss. 5, [article no.] 778 Vol. 15 Feb. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-01-12 2025-02-05 2025-02-27 694:691 229189891 10.3390/buildings15050778 2075-5309 buildings-15-00778.pdf buildings-15-00778.pdf 1 7D6343860E36760D97BE94EA68701F80 e1ae5719104c42c8fd1b42e4264a07883d83240c8d9a2ec31ea9806a1cd5f3ff 65381a1a-0317-11f0-895f-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189409 https://www.mdpi.com/2075-5309/15/5/778 0 6d3a7e6e-0317-11f0-895f-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189410 Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo 0 0 0