Tsunami protection wall at the Hamaoka Nuclear Power Station is steel structure with high strength bolted frictional joints. Tsunami protection wall at nuclear power stations is required to control the inundation of the site even in repeated tsunami attacks or huge tsunamis that exceed expectations. Therefore, it is important to confirm the strength and deformation properties in the region exceeding the design load. In this study, cyclic tensile loading test assuming repeated tsunamis using specimens of high strength bolted frictional joints of tsunami protection wall due to confirm strength and deformation properties up to the ultimate state was conducted. Furthermore, we proposed a modeling method of the load-displacement relationship of the joints in the full-scale model.
