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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.53 No.1
- 발행연도
- 2015.1
- 수록면
- 89 - 104 (16page)
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초록· 키워드
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In current bridge management systems (BMSs), load and speed restrictions are applied onunhealthy bridges to keep the structure safe and serviceable for as long as possible. But the question is, whether applying these restrictions will always decrease the internal forces in critical components of thebridge and enhance the safety of the unhealthy bridges. To find the answer, this paper for the first time in literature, looks into the design aspects through studying the changes in demand by capacity ratios of the critical components of a bridge under the train loads. For this purpose, a structural model of a simply supported bridge, whose dynamic behaviour is similar to a group of real railway bridges, is developed. Demand by capacity ratios of the critical components of the bridge are calculated, to identify their sensitivity to increase of speed and magnitude of live load. The outcomes of this study are very significant as they show that, on the contrary to what is expected, by applying restriction on speed, the demand by capacity ratio of components may increase and make the bridge unsafe for carrying live load. Suggestions are made to solve the problem.
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참고문헌 (33)
참고문헌 신청
AASHTO / 2007 / AASHTO LRFD bridge design specifications / American Association of State Highway and Transportation Officials
ACI Committee / 2005 / Building Code Requirements for Structural Concrete and Commentary (ACI 318M-05) / An ACI Standard, American Concrete Institute
Aflatooni, M. / 2014 / Synthetic rating procedures for rating railway bridges / J. Bridge Eng
Aflatooni, M. / 2012 / Classification of railway bridges based on criticality and vulnerability factors / Paper presented at the ASEC Australian Structural Engineering Conference
Aflatooni, M. / 2013 / Synthetic rating system for railway bridge management / J. Civil Struct. Hlth. Monit 3(2):81~91
ACI Committee / 2005 / Building Code Requirements for Structural Concrete and Commentary (ACI 318M-05) / An ACI Standard, American Concrete Institute
Aflatooni, M. / 2014 / Synthetic rating procedures for rating railway bridges / J. Bridge Eng
Aflatooni, M. / 2012 / Classification of railway bridges based on criticality and vulnerability factors / Paper presented at the ASEC Australian Structural Engineering Conference
Aflatooni, M. / 2013 / Synthetic rating system for railway bridge management / J. Civil Struct. Hlth. Monit 3(2):81~91
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