| Title |
Seismic Performance of Reinforced Concrete Frame Retrofitted with Opening-Isolated Type System |
| Authors |
Park, Wan-Shin ; Kim, Sun-Woo ; Jung, Hyun-Seok |
| DOI |
https://doi.org/10.5659/JAIK_SC.2020.36.2.137 |
| Keywords |
Non-Seismic Details; Opening-Isolated Type System; Seismic Performance |
| Abstract |
The purpose of this study is to experimentally evaluate the effect of improving seismic performance by applying the details of seismic
reinforcement to the reinforced concrete frame with non-seismic details while maintaining the original opening shape. In this study, based on
CF specimens with specific seismic details, a total of four full scale specimens were designed and fabricated. The main variables are the
width and spacing of steel dampers installed in the upper and lower parts of seismic reinforcement details, and the presence or absence of
torsion springs installed in the hinges. As a result of the test, it was evaluated to be helpful for seismic retrofit and opening isolation of
steel dampers installed at the upper and lower parts of the seismic reinforcement details and torsion springs installed at the joints. In
particular, CFR2S specimens with torsion springs showed the best performance in terms of strength, stiffness and energy dissipation capacity
with increasing displacement angle. |