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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.66 No.4
- 발행연도
- 2018.1
- 수록면
- 515 - 529 (15page)
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초록· 키워드
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Multiple hazards (multihazard) conditions may cause significant risk to structures that are originally designed for individual hazard scenarios. Such a multihazard condition arises when an earthquake strikes to a bridge pre-exposed to scour at foundations due to flood events. This study estimates the impact spectrum of flood-induced scour on seismic vulnerability of bridges. Characteristic river-crossing highway bridges are formed based on the information obtained from bridge inventories. These bridges are analyzed under earthquake-only and the abovementioned multihazard conditions, and bridge fragility curves are developed at component and system levels. Research outcome shows that bridges having pile shafts as foundation elements are protected from any additional seismic vulnerability due to the presence of scour. However, occurrence of floods can increase seismic fragility of bridges at lower damage states due to the adverse impact of scour on bridge components at superstructure level. These findings facilitate bridge design under the stated multihazard condition.
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참고문헌 (36)
참고문헌 신청
Alipour, A. / 2013 / Reliability-based calibration of load and resistance factors for design of RC bridges under multiple extreme events: Scour and earthquake / J. Brid. Eng. 18(5):362~371
API / 2003 / Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platform-Working Stress Design
Arneson, L.A.M. / 2012 / Evaluating Scour at Bridges, Hydraulic Engineering Circular (HEC) No.18, Publication No. FHWA-HIF-12-003
Aviram, A. / 2008 / Effect of abutment modeling on the seismic response of bridge structures / Earthq. Eng. Eng. Vibr. 7(4):395~402
Banerjee, S. / 2011 / Analysis of bridge performance under the combined effect of earthquake and scour / Proceedings of the International Conference on Vulnerability and Risk Analysis and Management (ICVRAM)/5th International Symposium on Uncertainty Modeling and Analysis
API / 2003 / Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platform-Working Stress Design
Arneson, L.A.M. / 2012 / Evaluating Scour at Bridges, Hydraulic Engineering Circular (HEC) No.18, Publication No. FHWA-HIF-12-003
Aviram, A. / 2008 / Effect of abutment modeling on the seismic response of bridge structures / Earthq. Eng. Eng. Vibr. 7(4):395~402
Banerjee, S. / 2011 / Analysis of bridge performance under the combined effect of earthquake and scour / Proceedings of the International Conference on Vulnerability and Risk Analysis and Management (ICVRAM)/5th International Symposium on Uncertainty Modeling and Analysis
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