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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.23 No.1
- 발행연도
- 2019.1
- 수록면
- 15 - 29 (15page)
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This paper addresses the problem of damage detection in suspension bridge hangers, with an emphasis on the modal flexibility method. It aims at evaluating the capability and the accuracy of the modal flexibility method to detect and locate single and multiple damages in suspension bridge hangers, with different level of severity and various locations. The study is conducted numerically and experimentally on a laboratory suspension bridge mock-up. First, the covariance-driven stochastic subspace identification is used to extract the modal parameters of the bridge from experimental data, using only output measurements data from ambient vibration. Then, the method is demonstrated for several damage scenarios and compared against other classical methods, such as: Coordinate Modal Assurance Criterion (COMAC), Enhanced Coordinate Modal Assurance Criterion (ECOMAC), Mode Shape Curvature (MSC) and Modal Strain Energy (MSE). The paper demonstrates the relative merits and shortcomings of these methods which play a significant role in the damage detection of suspension bridges.
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참고문헌 (56)
참고문헌 신청
Achkire, Y. / 1998 / Optical measurement of cable and string vibration / Shock Vib 5(3):171~179
Yonghui An / 2015 / A Test Method for Damage Diagnosis of Suspension Bridge Suspender Cables / Computer-Aided Civil and Infrastructure Engineering 30(10):771~784
Najib Bouaanani / 2006 / Numerical investigation of the modal sensitivity of suspended cables with localized damage / Journal of Sound and Vibration 292(3-5):1015~1030
Cantieni, R. / 2005 / Experimental methods used in system identification of civil engineering structures / Proceedings of the 1st int operational modal analysis conference (IOMAC)
Fabio Casciati / 2017 / A contribution to the modelling of human induced excitation on pedestrian bridges / Structural Safety 66:51~61
Yonghui An / 2015 / A Test Method for Damage Diagnosis of Suspension Bridge Suspender Cables / Computer-Aided Civil and Infrastructure Engineering 30(10):771~784
Najib Bouaanani / 2006 / Numerical investigation of the modal sensitivity of suspended cables with localized damage / Journal of Sound and Vibration 292(3-5):1015~1030
Cantieni, R. / 2005 / Experimental methods used in system identification of civil engineering structures / Proceedings of the 1st int operational modal analysis conference (IOMAC)
Fabio Casciati / 2017 / A contribution to the modelling of human induced excitation on pedestrian bridges / Structural Safety 66:51~61
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