| Title |
Seismic Resisting Capacity Enhancement by S Type Strut Steel Damper Strengthening |
| DOI |
https://doi.org/10.5659/JAIK_SC.2018.34.4.43 |
| Keywords |
Pohang Earthquake ; Seismic Resisting Capacity ; Steel Frame ; Steel Damper ; Vulnerability |
| Abstract |
The purpose of this study is to improve the seismic performance of RC framed buildings such as piloti buildings and school facilities. For this purpose, a half size RC frame specimen (SFD) was made and the inside of frame was reinforced with steel frame and S type strut steel damper. The experimental results are compared with those of the previous studies under the same conditions. The comparative specimens are non-reinforced specimen (BF) and damper reinforced specimen (AFD) that confined the column with an aramid sheet. As a result of comparing the maximum strength, stiffness degradation and energy dissipation capacity, SFD specimen was evaluated to be better than comparative specimens. According to the experimental results and FE analysis results, it was confirmed that the shear deformation was concentrated in the steel damper. And it was showed that cracks were concentrated at the upper and lower ends of the strut of the S type damper, and the final failure was observed at struts. From this, it was verified that the steel damper appropriately dissipates energy due to the lateral load. |