| Title |
Evaluation of Seismic Response of Unreinforced Masonry Walls Strengthened with Damper Performance-Based Steel Bar Truss Systems |
| DOI |
https://doi.org/10.5659/JAIK.2024.40.2.213 |
| Keywords |
조적벽체, 감쇠, 스프링, 강봉 트러스, 내진보강 |
| Abstract |
The present study examined the seismic response of unreinforced masonry (URM) walls strengthened with a damper performance-based
steel-bar truss system featuring springs in the diagonal elements. The stiffness constant of the utilized springs hovered around 1,220 N/mm.
Test results showed that the URM walls strengthened with this technique exhibited a peak strength approximately 1.5 times higher than the
counterpart unstrengthened wall. Additionally, the proposed technique proved beneficial in enhancing the ductility of URM walls, resulting in
1.6 to 1.7 times higher energy dissipation capacity and 1.2 to 1.3 times higher equivalent damping ratio compared to the unstrengthened
URM wall. Consequently, the damper performance-based steel-bar truss system holds promise for seismic strengthening of URM walls. |