The vibration control system is a construction method which controls the vibration of a building by using control system, in order to reduce damage of the building against external disturbance such as earthquake. When using panel damper, if it is completely fixed on structural frame, the axial force appears in the damper due to the damper deformation. Therefore, in this paper, the junction formation not to transfer axial force in panel damper proposed. The test is conducted for confirmation of performance of the proposed junction formation. As a result of the test, the difference in the width thickness ratio of the panel damper and junction form is clarified about the influence to give yield strength and deformation.
