지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.58 No.2
- 발행연도
- 2016.1
- 수록면
- 199 - 216 (18page)
이용수
초록· 키워드
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A large number of bridges were built several decades ago, and most of which have gradually suffered serious deteriorations or damage due to the increasing traffic loads, environmental effects, and inadequate maintenance. However, very few studies were conducted to investigate the vibration behaviors of a damaged bridge under moving vehicles. In this paper, the vibration behaviors of such vehicle-bridge system are investigated in details, in which the effects of the concrete cracks and bridge surface roughness are particularly considered. Specifically, two vehicle models are introduced, i.e., a simplified four degree-of-freedoms (DOFs) vehicle model and a more complex seven DOFs vehicle model, respectively. The bridges are modeled in two types, including a single-span uniform beam and a full scale reinforced concrete high-pier bridge, respectively. The crack zone in the reinforced concrete bridge is considered by a damage function. The bridge and vehicle coupled equations are established by combining the equations of motion of both the bridge and vehicles using the displacement relationship and interaction force relationship at the contact points between the tires and bridge. The numerical simulations and verifications show that the proposed modeling method can rationally simulate the vibration behaviors of the damaged bridge under moving vehicles; the effect of cracks on the impact factors is very small and can be neglected for the bridge with none roughness, however, the effect of cracks on the impact factors is very significant and cannot be neglected for the bridge with roughness.
목차
등록된 정보가 없습니다.
참고문헌 (30)
참고문헌 신청
Abdel Wahab, M.M. / 1999 / Parameterization of damage in reinforced concrete structures using model updating / J. Sound Vib 228(4):717~730
American Association of State Highway and Transportation Officials / 2004 / LRFD bridge design specifications
Ariaei, A. / 2009 / Vibration analysis of beams with open and breathing cracks subjected to moving masses / J. Sound Vib 326:709~724
Chen, S.R. / 2004 / Accident assessment of vehicles on long-span bridges in windy environments / J. Wind Eng. Ind. Aerodyn 92:991~1024
Chen, S.R. / 2010 / Dynamic performance simulation of long-span bridge under combined loads of stochastic traffic and wind / J. Bridge Eng 15(3):219~230
American Association of State Highway and Transportation Officials / 2004 / LRFD bridge design specifications
Ariaei, A. / 2009 / Vibration analysis of beams with open and breathing cracks subjected to moving masses / J. Sound Vib 326:709~724
Chen, S.R. / 2004 / Accident assessment of vehicles on long-span bridges in windy environments / J. Wind Eng. Ind. Aerodyn 92:991~1024
Chen, S.R. / 2010 / Dynamic performance simulation of long-span bridge under combined loads of stochastic traffic and wind / J. Bridge Eng 15(3):219~230
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