Abstract—It is efficient to construct a device by combining two or more damping devices to respond to various vibration sources, and diverse type of damping devices are being developed recently. In this study, HSR hybrid damper (Hybrid Slit damper with vulcanized Rubber) in which vulcanized rubber and steel slit plate are combined in parallel was proposed and experiments were performed to analyze the seismic performance. Vulcanized rubber dissipates seismic energy through shear deformation and has great initial stiffness. Compared with the conventional slit dampers with the same yield strength, the hybrid damper has an advantage in that only vulcanized rubber is activated for small earthquakes or strong wind, and both vulcanized rubber and slit damper work simultaneously for strong earthquakes. Cyclic loading tests of damper specimens are carried out to evaluate their seismic energy dissipation capability in accordance with criteria presented in KDS 41 17 00 and MOE 2019. In addition, the second-floor full-scale reinforced concrete frame test was performed, and the test results were analyzed. Test result shows that the damping devices installed using the proposed procedure are effective in restraining the building displacement within a given target performance limit state.

Keywords—hybrid damper, hybrid damping device, vulcanized rubber, steel slit damper, seismic performance evaluation

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