DYNAMIC LOADING TESTS OF HIGH DAMPING RUBBER BEARING UNDER LARGE DISPLACEMENTS AND HIGH VELOCITIES

In this study, we conducted dynamic performance verification tests on High Damping Rubber Bearing (HDR). A test specimen was a full-scale HDR with a rubber outer diameter of 1,500mm. Large displacements of 875 mm and high velocities of 1,660 mm/s were applied to the specimen. We confirmed that the HDR showed stable dynamic characteristics under sinusoidal waves with various loading conditions. Furthermore, the HDR exhibited stable behavior even when a seismic response wave exceeding 1,500mm/s under low compressive stress was applied.