通过观察，对于明销直榫节点其变形形态是以木销钉为中心来发生变形，在加载

Through observation, the deformation of the straight tenon joint of the exposed pin is centered on the wooden dowel. At the end of loading, the local stress of the mouth and the tenon exceeds the elastic yield strength of the wood along the grain and the transverse grain, and the local compression deformation is relatively large. Obviously, the relative rotation angle between the column and the arch is also increasing, and the maximum rotation angle can reach 0.22rad.

Through observation, the deformation pattern of the open-pin direct slug node is centered on the wooden pin nail to deform, at the end of loading, the local force of the crucible and hoe exceeds the elastic yield strength of the wood, the local compression deformation is more obvious, the relative angle between the column and the crucible is also increasing, the maximum angle can reach 0.22 rad.

The maximum deformation is observed between the tenon and the tenon, and the maximum deformation occurs at the end of the compression.