Panel sheathed shear walls are widely used wooden buildings as structural elements and the performance of single shear of nailed joints is important in the performance of the shear wall. There are mainly two kinds of the single shear test. Compared between the results of both tests, the values of initial stiffness in the two tests were considerably different. Three causes for this difference were pointed out the anisotropy of the performance of the nailed joint, the asymmetric deformation caused by the rotation of the wall body, and the variation in the performance of the nailed joints.

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To examine the load-deformation relationships and failure modes of the mud-walls placed on foundation, static tests under lateral cyclic loads were carried out. The estimation method of load-deformation curve for the mud-walls with openings was proposed. It is considering the bending of the columns and pullout of the lintel. The estimation results were compared with the experimental results of the specimens that are composed of hanging mud-walls, window back mud-walls and narrow side mud-walls. The estimation results were similar to the corresponding experimental results; therefore, the usability of the estimation method was confirmed under the conditions set in this paper.

We studied and developed tensile joint of wood with round bar steel and washer, which can be adapted in wooden king-post truss or wooden parallel chord truss and so on. Upon developing, we had conducted tensile element test and grasped the characteristics of those. In 2015, a revised edition of JIS A 3301-2015 (Design standards for wooden construction of school buildings), adopting these tensile joint of wood with pulling bolts in roof structure of king-post truss, was published.