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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.28 No.4
- 발행연도
- 2021.10
- 수록면
- 469 - 481 (13page)
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초록· 키워드
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In recent decades, researchers have developed many technologies like energy dissipating dampers to improve the response of structures in seismic events but still limitations persist in earthquake-resistant design. Residual drift is still a significant problem encountered while using dampers which results in a reduction in their performance. Many types of dampers have been introduced to localize the damages in a defined section of a structure to prevent structural failure and decrease the repairing cost. However, in general, rehabilitation of a structure using a damper is not an economical option because residual deformation occurs due to limitations of constituent materials of the damper. Therefore, in this paper, a shape memory alloys (SMAs) damper is proposed to mitigate the performance degradation problem caused by residual deformation of a structure and to reduce maintenance and repairing costs. The shape memory alloys can reduce residual deformation at room temperature due to the superelastic effect. In addition, a pretension force was applied to prevent damage by reducing the fastening force of the shape memory alloy bar and to improve the load performance. Finite element analysis was performed to verify the performance of the damper to which the pretension was applied. Furthermore, recentering performance and energy dissipation capacity of the damper were analyzed. The analysis results show that the proposed damper can reduce the residual strain by recentering, as well as improve energy dissipation and ultimate capacity.
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등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
F. Auricchio / 1997 / A one-dimensional model for superelastic shape-memory alloys with different elastic properties between austenite and martensite / International Journal of Non-Linear Mechanics 32(6):1101~1114
Ricky W.K. Chan / 2008 / Experimental study of steel slit damper for passive energy dissipation / Engineering Structures 30(4):1058~1066
Reginald DesRoches / 2004 / Cyclic Properties of Superelastic Shape Memory Alloy Wires and Bars / Journal of Structural Engineering 130(1):38~46
F Hedayati Dezfuli / 2015 / Hysteresis model of shape memory alloy wire-based laminated rubber bearing under compression and unidirectional shear loadings / Smart Materials and Structures 24(6):065022
Nan Gao / 2016 / An innovative seismic bracing system based on a superelastic shape memory alloy ring / Smart Materials and Structures 25(5):055030
Ricky W.K. Chan / 2008 / Experimental study of steel slit damper for passive energy dissipation / Engineering Structures 30(4):1058~1066
Reginald DesRoches / 2004 / Cyclic Properties of Superelastic Shape Memory Alloy Wires and Bars / Journal of Structural Engineering 130(1):38~46
F Hedayati Dezfuli / 2015 / Hysteresis model of shape memory alloy wire-based laminated rubber bearing under compression and unidirectional shear loadings / Smart Materials and Structures 24(6):065022
Nan Gao / 2016 / An innovative seismic bracing system based on a superelastic shape memory alloy ring / Smart Materials and Structures 25(5):055030
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