The embedment characteristics of wood are fundamental and very important to evaluate the structural mechanisms and seismic performances of traditional timber structures in Japan. In order to evaluate them effectively, elastic embedded displacements are formulated by applying Pasternak model to wood members with a finite length, taking the orthotropic properties into account. Then, the increasing ratio of the embedment stiffness depending on the geometric measures and mechanical properties is formulated based on the Pasternak model and discussed with the past formulations.
