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.21 No.1
- 발행연도
- 2018.1
- 수록면
- 53 - 64 (12page)
이용수
초록· 키워드
오류제보하기
Nondestructive testing methods are required to assess the condition of civil structures and formulate their maintenance programs. Axial force identification is required for several structural members of truss bridges, pipe racks, and space roof trusses. An accurate evaluation of in situ axial forces supports the safety assessment of the entire truss. A considerable redistribution of internal forces may indicate structural damage. In this paper, a novel compressive force identification method for prismatic members implemented using static deflections is applied to steel beams. The procedure uses the Euler–Bernoulli beam model and estimates the compressive load by using the measured displacement along the beam\'s length. Knowledge of flexural rigidity of the member under investigation is required. In this study, the deflected shape of a compressed steel beam is subjected to an additional vertical load that was short-term measured in several laboratory tests by using fiber Bragg grating–differential settlement measurement (FBG–DSM) sensors at specific cross sections along the beam\'s length. The accuracy of midspan deflections offered by the FBG–DSM sensors provided excellent force estimations. Compressive load detection accuracy can be improved if substantial second-order effects are induced in the tests. In conclusion, the proposed method can be successfully applied to steel beams with low slenderness under real conditions.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
Aldar, A. / 2013 / Health assessment of engineered structures: bridges, buildings, and other infrastructures / World Scientific Publishing
Bahra, A.S. / 2011 / Identifying multiple axial load patterns using measured vibration data / J. Sound Vib. 330(15):3591~3605
Bazant, Z.P. / 1991 / Stability of Structures / Oxford University Press
Bonopera, M. / 2018 / Compressive column load identification in steel space frames using second-order deflection-based methods / Int. J. Struct. Stab. Dy. 18(7):1850092
Chang, K.C. / 2012 / Structural assessment of a repaired cable bridge damaged in 1999 Chi-Chi earthquake / Proceedings of the International Symposium on Engineering Lessons Learned from the 2011 Great East Japan Earthquake
Bahra, A.S. / 2011 / Identifying multiple axial load patterns using measured vibration data / J. Sound Vib. 330(15):3591~3605
Bazant, Z.P. / 1991 / Stability of Structures / Oxford University Press
Bonopera, M. / 2018 / Compressive column load identification in steel space frames using second-order deflection-based methods / Int. J. Struct. Stab. Dy. 18(7):1850092
Chang, K.C. / 2012 / Structural assessment of a repaired cable bridge damaged in 1999 Chi-Chi earthquake / Proceedings of the International Symposium on Engineering Lessons Learned from the 2011 Great East Japan Earthquake
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