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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.1
- 발행연도
- 2019.1
- 수록면
- 1 - 14 (14page)
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초록· 키워드
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Transmission tower-line system is one of most critical lifeline systems to cities. However, it is found that the transmission tower-line system is prone to be damaged by earthquakes in past decades. To mitigate seismic demands, this study introduces a tuned-mass damper (TMD) using superelastic shape memory alloy (SMA) spring for the system. In addition, considering the dynamic characteristics of both tower-line system and SMA are affected by temperature change. Particular attention is paid on the effect of temperature variation on seismic behavior. In doing so, the SMA-TMD is installed into the system, and its properties are optimized through parametric analyses. The considered temperature range is from -40 to 40°C. The seismic control effect of using SMA-TMD is investigated under the considered temperatures. Interested seismic performance indices include peak displacement and peak acceleration at the tower top and the height-wise deformation. Parametric analyses on seismic intensity and frequency ratio were carried out as well. This study indicates that the nonlinear behavior of SMA-TMD is critical to the control effect, and proper tuning before application is advisable. Seismic demand mitigation is always achieved in this wide temperature range, and the control effect is increased at high temperatures.
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참고문헌 (39)
참고문헌 신청
Andrawes, B. / 2005 / Unseating prevention for multiple frame bridges using superelastic devices / Smart Mater. Struct 14(3):S60
ANSYS, Inc / 2012 / ANSYS structure Analysis Guide Release 14.5 / SAP, IP Inc
G. Carreras / 2011 / Fatigue laboratory tests toward the design of SMA portico-braces / Smart Structures and Systems, An International Journal 7(1):41~57
Fabio Casciati / 2009 / A passive control device with SMA components: from the prototype to the model / Structural Control and Health Monitoring 16(7-8):751~765
Sara Casciati / 2017 / Investigation on the fatigue performance of Ni-Ti thin wires / Structural Control and Health Monitoring 24(1):e1855
ANSYS, Inc / 2012 / ANSYS structure Analysis Guide Release 14.5 / SAP, IP Inc
G. Carreras / 2011 / Fatigue laboratory tests toward the design of SMA portico-braces / Smart Structures and Systems, An International Journal 7(1):41~57
Fabio Casciati / 2009 / A passive control device with SMA components: from the prototype to the model / Structural Control and Health Monitoring 16(7-8):751~765
Sara Casciati / 2017 / Investigation on the fatigue performance of Ni-Ti thin wires / Structural Control and Health Monitoring 24(1):e1855
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