지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal 제34권 제3호
- 발행연도
- 2024.9
- 수록면
- 203 - 213 (11page)
이용수
초록· 키워드
오류제보하기
A cracked bridge with reduced stiffness is susceptible to vehicle-induced vibrations above the warning threshold. This study proposes a pounding tuned mass damper (PTMD) with an adjustable mass and double pounding boundaries covered with a viscoelastic material. The PTMD is intended to reduce bridge vibrations caused by vehicle loads. A vehicle-bridge-PTMD coupled equation of motion is established against the engineering background of a continuous steel-concrete composite girder bridge. The bridge performance degradation is evaluated in terms of crack density and stiffness reduction coefficient, which are determined through field crack investigations. The vehicle-induced vibrations of a cracked continuous steel-concrete bridge are then studied while changing the parameters of the designed PTMD. The PTMD effectively reduced the vehicle-induced vibrations of the bridge. The vibration reduction ratio reached 38.9% after applying three PTMDs with a total mass ratio of 2%. On a simply supported steel-concrete composite beam, three PTMDs with a total mass ratio of 2% reduced the vibration amplitudes by 31.4%.
목차
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