| Title |
A Study on Hysteresis Characteristics and Analysis Model of Hybrid Damping Device |
| Authors |
박병태(Park, Byung-Tae) ; 이준호(Lee, Joon-Ho) |
| DOI |
https://doi.org/10.5659/JAIK.2021.37.11.263 |
| Keywords |
Hybrid damping device; Steel hysteretic damping device; Rotational friction damping device; Hysteresis characteristics; Analysis model |
| Abstract |
The present study proposed a hybrid damping system that can minimize structural damage caused by an earthquake. In hybrid damping
system, a rotational friction damping device and a steel hysteresis damping device are connected in parallel. The rotational friction damping
device with high stiffness operates at low displacement; and then, it behaves in a composite movement at high displacement to dissipate the
energy generated by an earthquake. To propose the hysteresis characteristic and numerical analysis model of the composite damping device, a
total of 15 specimens were prepared and were made to undergo cyclic loading according to the damping device test methods of KDS 41 17
00 and MOE 2019. From the results of the experiment, the maximum and minimum loads at the origin, as well as in each direction, and
the hysteresis curve area were determined to be within the maximum ±6% of the average value, satisfying the suitability criteria of Korea
damping devices. The four numerical analysis models, which were proposed for the vibration suppression and seismic reinforcement effect
evaluation, adequately simulated the experimental results; however, the tri-linear model exhibited a tendency to underestimate the energy
absorption capacity at 60mm the experimental displacement. |