Semi-rigid Behavior of Joints in Wood Light-frame Structures

The problem of behavior of the joint in wood light-frame structures were discussed in the paper. Two types of joint flexibility and their impact on the behavior of the structure were discussed. The results of the experimental investigation of rotational and axial stiffness of joint in wood light-frame structures were presented. The micro-scale tests of specimen representing joist-to top plate and top plate-to-stud joints in wall diaphragms were conducted. The representing load-displacement relationships for rotation and bearing at the joints were calculated. These relationship are described by the non-linear function. The comparison of rotational angle and relative translation obtained from experiment with displacement calculated using theoretical formulas were provided.