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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.20 No.5
- 발행연도
- 2017.1
- 수록면
- 617 - 625 (9page)
이용수
초록· 키워드
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Prestress force identification (PFI) is crucial to maintain the safety of prestressed concrete bridges. A synergic identification method has been proposed recently by the authors that can determine the prestress force (PF) and the excitation force simultaneously in prestressed concrete beams with good accuracy. In this paper, the ability of this method in the application with prestressed concrete box-girder bridges is demonstrated. A reasonable assumption is made to capture the similarity of the dynamic behavior of the prestressed concrete box-girder bridge and a beam under a certain loading scenario, and the feasibility of this method for application in a prestressed box-girder bridge is affirmed. A comprehensive laboratory test program is conducted, and the effects of PF, excitation, measuring time and uncertainties are studied. Results show that the proposed method can predict the PF and the excitation force in a prestressed concrete box-girder accurately and has a great robustness against uncertainties.
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참고문헌 (25)
참고문헌 신청
Bazant, Z. P. / 2012 / Excessive long-time deflections of prestressed box girders. I : Record-span bridge in palau and other paradigms / J. Struct. Eng. 138(6):676~686
Choquet, P. / 1988 / Development and field testing of a tension measuring gauge for cable bolts used as ground support / CIM Bullet. 81(914):53~59
Dall’asta, A. / 1996 / Discussion of"prestress force effect on vibration frequency of concrete bridges / J. Struct. Eng. 122:458~458
Geller, L. / 1992 / NDT of wire ropes with E/M instruments : An examination of operational conditions in Canada / CIM Bullet. 85(964):60~67
Hussin, M. / 2015 / Finite element modelling of lamb wave propagation in prestress concrete and effect of the prestress force on the wave’s characteristic
Choquet, P. / 1988 / Development and field testing of a tension measuring gauge for cable bolts used as ground support / CIM Bullet. 81(914):53~59
Dall’asta, A. / 1996 / Discussion of"prestress force effect on vibration frequency of concrete bridges / J. Struct. Eng. 122:458~458
Geller, L. / 1992 / NDT of wire ropes with E/M instruments : An examination of operational conditions in Canada / CIM Bullet. 85(964):60~67
Hussin, M. / 2015 / Finite element modelling of lamb wave propagation in prestress concrete and effect of the prestress force on the wave’s characteristic
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