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 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.17
- 발행연도
- 2004.1
- 수록면
- 539 - 556 (18page)
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초록· 키워드
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In this paper, the design, fabrication and characterization of a piezoelectric friction damperare presented. It was sized with the proposed practical procedure to minimize the story drift and flooracceleration of an existing 1/4-scale, three-story frame structure under both near-fault and far-fieldearthquakes. The design operation friction force in kip was numerically determined to range from 2.2 to3.3 times the value of the peak ground acceleration in g (gravitational acceleration). Experimental resultsindicated that the load-displacement loop of the damper is nearly rectangular in shape and independent ofthe excitation frequency. The coefficient of friction of the damper is approximately 0.85 when theclamping force on the damper is above 400 lbs. It was found that the friction force variation of thedamper generated by piezoelectric actuators with 1000 Volts is approximately 90% of the expected value.The properties of the damper are insensitive to its ambient temperature and remain almost the same afterbeing tested for more than 12,000 cycles.
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