Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Improving Seismic Performance of Stacked Discrete Structures Using Ball Vibration Absorber

구체 감쇠기를 이용한 이산체의 제진 성능 개선

  • 장정쥔 (경남대학교 사회기반시스템공학과) ;
  • 김병화 (경남대학교 재난안전건설학과)
  • Received : 2025.09.10
  • Accepted : 2025.09.27
  • Published : 2025.11.01
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Abstract

The abstract should clearly state the purpose and nature of the investigation while summarizing the key conclusions in English only. It should be a single paragraph consisting of no more than 200 words. This study presents a method to enhance the seismic performance of a stacked stone pagoda by utilizing a Ball Vibration Absorber (BVA). The governing equations of motion for sliding, the primary failure mode of the stacked stone pagoda, were derived, and a numerical model was developed. Through various numerical analyses, the optimal design parameters of the BVA were identified to maximize its seismic control effectiveness for the pagoda. The BVA device can increase the critical seismic acceleration at which the sliding mode occurs in the structure. Moreover, the seismic control performance of the BVA improves with an increase in the mass of the sphere and the coefficient of friction between the layers. Conversely, as the applied seismic acceleration rises, the effectiveness of the BVA in controlling seismic responses diminishes, although a certain level of control effect is maintained. Finally, as long as the sphere of the BVA maintains a specific range of rolling motion, the radius of the sphere or rolling radius does not significantly impacts its seismic control performance.

Keywords

Acknowledgement

이 논문은 2023년 한국연구재단 RS-2023-00252359의 연구비 지원을 받아 수행되었습니다.

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