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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.24 No.4
- 발행연도
- 2019.1
- 수록면
- 459 - 474 (16page)
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초록· 키워드
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This study develops a novel recursive algorithm to significantly enhance the computation efficiency of a recently proposed stochastic subspace identification (SSI) methodology based on an alternative stabilization diagram. Exemplified by the measurements taken from the two investigated office buildings, it is first demonstrated that merely one sixth of computation time and one fifth of computer memory are required with the new recursive algorithm. Such a progress would enable the realization of on-line and almost real-time monitoring for these two steel framed structures. This recursive SSI algorithm is further applied to analyze 20 months of monitoring data and comprehensively assess the environmental effects. It is certified that the root-mean-square (RMS) response can be utilized as an excellent index to represent most of the environmental effects and its variation strongly correlates with that of the modal frequency. More detailed examination by comparing the monthly correlation coefficient discloses that larger variations in modal frequency induced by greater RMS responses would typically lead to a higher correlation.
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참고문헌 (47)
참고문헌 신청
Juan Pablo Amezquita-Sanchez / 2016 / Signal Processing Techniques for Vibration-Based Health Monitoring of Smart Structures / Archives of Computational Methods in Engineering 23(1):1~15
Nurdan Memişoglu Apaydın / 2012 / Vibration characteristics of a suspension bridge under traffic and no traffic conditions / Earthquake Engineering & Structural Dynamics 41(12):1717~1723
Pelin Gundes Bakir / 2011 / Automation of the stabilization diagrams for subspace based system identification / Expert Systems with Applications 38(12):14390~14397
Andrea Belleri / 2014 / Damage assessment through structural identification of a three-story large-scale precast concrete structure / Earthquake Engineering & Structural Dynamics 43(1):61~76
Yinghong Cao / 2010 / Temperature effects on cable stayed bridge using health monitoring system: a case study / Structural Health Monitoring: An International Journal 10(5):523~537
Nurdan Memişoglu Apaydın / 2012 / Vibration characteristics of a suspension bridge under traffic and no traffic conditions / Earthquake Engineering & Structural Dynamics 41(12):1717~1723
Pelin Gundes Bakir / 2011 / Automation of the stabilization diagrams for subspace based system identification / Expert Systems with Applications 38(12):14390~14397
Andrea Belleri / 2014 / Damage assessment through structural identification of a three-story large-scale precast concrete structure / Earthquake Engineering & Structural Dynamics 43(1):61~76
Yinghong Cao / 2010 / Temperature effects on cable stayed bridge using health monitoring system: a case study / Structural Health Monitoring: An International Journal 10(5):523~537
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