AbstractThis paper describes a feasibility study on a high‐damping device (HiDAM) installed in a building structure by way of a bracing mechanism.A seismic response analysis with respect to a high‐rise building approximately 100 m high is reported. Proper adjustment of the damping coefficient of the HiDAM (oil damper) provided an over all damping factor of about 10–20 per cent to the building structure, and reductions in the response, deformation and shear forces were verified analytically.This paper reports also the performance confirmation tests conducted on a model device of the HiDAM which satisfied the specifications determined from the analytical results. The test results demonstrate the feasibility of the HiDAM and the possibility of utilizing it in high‐rise bu
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