Veneer quality control Part 8:Mechanical Behavior of Fast-growing Poplar LVL-Plywood Nail Joint

Veneer quality control Part 8:Mechanical Behavior of Fast-growing Poplar LVL-Plywood Nail Joint

Absrtact: Shear wall is the main lateral resistance component in light wood structure building, and the performance of nail joints is the key factor to determine the mechanical performance of light wood structure shear wall. 120 specimens of nailed joints were made by using fast-growing poplar LVL, structural plywood and domestic common round steel nails, and the lateral bearing capacity of the joints was tested by monotonic loading method. The results show that there are six types of failure modes of the joints. Different nailing methods have little effect on the maximum bearing capacity of the nailed joints, but have great influence on the yield load and stiffness; the angle between the direction of load and the direction of wall and bone has great influence on the maximum bearing capacity of the nailed joints. The maximum bearing capacity, yield load and stiffness of nailed joints are all affected. By fitting the load-slip curves and related parameters of the joints, it is found that the yield load fitted curve has a high degree of fitness, but the fitted stiffness has some differences.

Key words: China fast-growing poplar, LVL, nail connection, bearing capacity, stiffness,

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