Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Evaluation of Seismic Response of Unreinforced Masonry Walls Strengthened with Damper Performance-Based Steel Bar Truss Systems

감쇠형 강봉 트러스 시스템으로 보강된 조적벽체의 내진거동 평가

  • Received : 2023.11.23
  • Accepted : 2024.01.17
  • Published : 2024.02.29
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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.

Keywords

Acknowledgement

이 연구는 2023학년도 경기대학교 학술연구비(일반연구과제) 지원에 의하여 수행되었음.

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