지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.11 No.4
- 발행연도
- 2013.1
- 수록면
- 411 - 433 (23page)
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초록· 키워드
오류제보하기
Due to its easy operation and wide applicability, the ambient vibration method is commonly adopted to determine the cable force by first identifying the cable frequencies from the vibration signals. With given vibration length and flexural rigidity, an analytical or empirical formula is then used with these cable frequencies to calculate the cable force. It is, however, usually difficult to decide the two required parameters, especially the vibration length due to uncertain boundary constraints. To tackle this problem, a new concept of combining the modal frequencies and mode shape ratios is fully explored in this study for developing an accurate method merely based on ambient vibration measurements. A simply supported beam model with an axial tension is adopted and the effective vibration length of cable is then independently determined based on the mode shape ratios identified from the synchronized measurements. With the effective vibration length obtained and the identified modal frequencies, the cable force and flexural rigidity can then be solved using simple linear regression techniques. The feasibility and accuracy of the proposed method is extensively verified with demonstrative numerical examples and actual applications to different cable-stayed bridges. Furthermore, several important issues in engineering practice such as the number of sensors and selection of modes are also thoroughly investigated.
목차
등록된 정보가 없습니다.
참고문헌 (30)
참고문헌 신청
Chen, C. C. / 2009 / The effects of rubber constraints on the effective vibration length of a stay cable / Proceedings of the 2009 Conference on Computer Applications in Civil and Hydraulic Engineering, Hsinchu, September
Clough, R. W. / 1993 / Dynamics of structures / McGraw-Hill
Cunha, A. / 2001 / Dynamic tests on large cable-stayed bridge / J. Bridge Eng. -ASCE 6(1):54~62
Duan, Y. F. / 2011 / Smart Elasto-Magneto-Electric(EME)sensors for stress monitoring of steel structures in railway infrastructures / J. Zhejiang University(Science A) 12(12):895~901
Duan, Y. F. / 2012 / Steel stress monitoring sensors based on elasto-magnetic effect and using magneto-electric laminated composites / J. Appl. Phys. 111(7):07E516/1~07E516/3
Clough, R. W. / 1993 / Dynamics of structures / McGraw-Hill
Cunha, A. / 2001 / Dynamic tests on large cable-stayed bridge / J. Bridge Eng. -ASCE 6(1):54~62
Duan, Y. F. / 2011 / Smart Elasto-Magneto-Electric(EME)sensors for stress monitoring of steel structures in railway infrastructures / J. Zhejiang University(Science A) 12(12):895~901
Duan, Y. F. / 2012 / Steel stress monitoring sensors based on elasto-magnetic effect and using magneto-electric laminated composites / J. Appl. Phys. 111(7):07E516/1~07E516/3
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