The lateral stability of Light-frame timber (LFT) shear-walls is typically ensured by the nailed connection between the wooden frame elements and the sheathing wooden panels, e.g. Oriented Strain Boards (OSB), whereas hold-downs and angle brackets are typically adopted to limit the rigid body rotation and sliding of shear-walls. A valuable alternative to wooden panels in the sheathing of LFT shear-walls is given by diagonal boards. Wooden boards are typically 45° inclined and fastened to frame members, on one or both sides, by means of nails. This paper presents a numerical and experimental study of LFT shear-walls with diagonal board sheathing through extensive experimental campaign and finite element modelling. Monotonic tests were performed on six full-scale LFT shear-walls whereas monotonic shear tests were conducted at connection level to determine the mechanical properties of sheathing-to-framing nailed connections. The results showed that shear-walls sheathed on two sides, with boards which are 90° oriented one to the other, are characterized by significant in-plane shear resistance and can be considered as a feasible alternative to traditional LTF with wooden sheathing panels.
Light-Frame Timber Shear-Walls with Diagonal Board Sheathing: Experimental and Numerical Investigation / Setti, A.; Casagrande, D.; Polastri, A.; Fanti, R.; Follesa, M.; Riggi, E.. - 6:(2023), pp. 3492-3498. (Intervento presentato al convegno 13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023 tenutosi a Oslo, Norway nel 2023) [10.52202/069179-0454].
Light-Frame Timber Shear-Walls with Diagonal Board Sheathing: Experimental and Numerical Investigation
Casagrande D.;Polastri A.;
2023-01-01
Abstract
The lateral stability of Light-frame timber (LFT) shear-walls is typically ensured by the nailed connection between the wooden frame elements and the sheathing wooden panels, e.g. Oriented Strain Boards (OSB), whereas hold-downs and angle brackets are typically adopted to limit the rigid body rotation and sliding of shear-walls. A valuable alternative to wooden panels in the sheathing of LFT shear-walls is given by diagonal boards. Wooden boards are typically 45° inclined and fastened to frame members, on one or both sides, by means of nails. This paper presents a numerical and experimental study of LFT shear-walls with diagonal board sheathing through extensive experimental campaign and finite element modelling. Monotonic tests were performed on six full-scale LFT shear-walls whereas monotonic shear tests were conducted at connection level to determine the mechanical properties of sheathing-to-framing nailed connections. The results showed that shear-walls sheathed on two sides, with boards which are 90° oriented one to the other, are characterized by significant in-plane shear resistance and can be considered as a feasible alternative to traditional LTF with wooden sheathing panels.File | Dimensione | Formato | |
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