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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.25 No.3
- 발행연도
- 2020.1
- 수록면
- 311 - 322 (12page)
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This paper studies the influence of parameters of a novel SMA helical spring energy dissipation brace on the seismic resistance of a frame structure. The force-displacement relationship of the SMA springs is established mathematically based on a multilinear constitutive model of the SMA material. Four SMA helical springs are fabricated, and the forcedisplacement relationship curves of the SMA springs are obtained via tension tests. A numerical dynamic model of a twofloor frame with spring energy dissipation braces is constructed and evaluated via vibration table tests. Then, two spring parameters, namely, the ratio of the helical spring diameter to the wire diameter and the pre-stretch length, are selected to investigate their influences on the seismic responses of the frame structure. The simulation results demonstrate that the optimal ratio of the helical spring diameter to the wire diameter can be found to minimize the absolute acceleration and the relative displacement of the frame structure. Meanwhile, if the pre-stretch length is assigned a suitable value, excellent vibration reduction performance can be realized. Compared with the frame structure without braces, the frames with spring braces exhibit highly satisfactory seismic resistance performance under various earthquake waves. However, it is necessary to select an SMA spring with optimal parameters for realizing optimal vibration reduction performance.
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참고문헌 (42)
참고문헌 신청
Aguiar, R. A. A. / 2010 / Experimental and numerical investigations of shape memory alloy helical springs / Smart Mater. Struct 19(2)
An, Y. H. / 2014 / A damage localization method based on the ‘jerk energy’ / Smart Mater. Struct 23(2)
Jae-Sung Bae / 2005 / Vibration suppression of a cantilever beam using eddy current damper / Journal of Sound and Vibration 284(3-5):805~824
J.G. Boyd / 1996 / A thermodynamical constitutive model for shape memory materials. Part I. The monolithic shape memory alloy / International Journal of Plasticity 12(6):805~842
G. Carreras / 2011 / Fatigue laboratory tests toward the design of SMA portico-braces / Smart Structures and Systems, An International Journal 7(1):41~57
An, Y. H. / 2014 / A damage localization method based on the ‘jerk energy’ / Smart Mater. Struct 23(2)
Jae-Sung Bae / 2005 / Vibration suppression of a cantilever beam using eddy current damper / Journal of Sound and Vibration 284(3-5):805~824
J.G. Boyd / 1996 / A thermodynamical constitutive model for shape memory materials. Part I. The monolithic shape memory alloy / International Journal of Plasticity 12(6):805~842
G. Carreras / 2011 / Fatigue laboratory tests toward the design of SMA portico-braces / Smart Structures and Systems, An International Journal 7(1):41~57
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