Abstract
The capacity and stiffness of laminated bamboo lumber (LBL) shear wall sheathed by oriented strand boards (OSBs) is significantly influenced by the structural performance of the nailed connections. Single-connector sheathing-to-framing connections were experimentally tested under monotonic and cyclic loading. The parameters investigated were the nail diameter, the loading direction, the edge distances of nails in the OSB and the LBL. The minimum edge distance for nails in both the LBL stud and the OSB panel was found to be 15 mm. Nails with a smaller edge distance within the members are at higher risk of failing prematurely under lower loads, demonstrating a brittle failure mode. The specimens subjected to cyclic and monotonic loading showed quite different damage. Fatigue fracture due to repeated reverse bending was the typical failure mode for nails in the cyclic experiments. The maximum load of the specimens increased with a larger nail diameter and the load-carrying capacity of parallel-to-grain specimens was greater than that of perpendicular-to-grain specimens. The energy-dissipation capacity of the connections increased with an increase in nail diameter and an increase in the edge distance of the nail in both the LBL and the OSB.
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More From: Proceedings of the Institution of Civil Engineers - Structures and Buildings
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