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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.76 No.6
- 발행연도
- 2020.1
- 수록면
- 823 - 837 (15page)
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초록· 키워드
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In this research, the idea of improving the seismic response of an existing steel structure with use of friction dampers between external walls and the structure is discussed. The main difference of this method with other methods of seismic rehabilitation is that interior spaces of the existing structure remain untouched and new parts including external walls and dampers are added outside of the structure. Three frames having 3, 6 and 9 stories are modeled in SAP2000 software before and after seismic retrofit and responses of the system are investigated under the effect of seven earthquake records. Initially, different ratios of seismic weight of stories are presumed for slip forces of the dampers with a distribution based on given equations. The optimized capacity of dampers is obtained by investigating the average of maximum displacement, acceleration and base shear of the structure caused by earthquakes. For this optimized values, maximum inter-story drifts and acceleration are obtained through numerical models. Results show that in 3, 6 and 9-story frames peak roof displacement decreased up to 80%. Maximum roof acceleration and base shear of the frames also decreased 46, 40 and 32% and 84, 67 and 65%, respectively for three building structures.
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참고문헌 (33)
참고문헌 신청
Majid Anoushehei / 2017 / Experimental investigation on hysteretic behavior of rotational friction dampers with new friction materials / Steel and Composite Structures, An International Journal 24(2):239~248
2016 / ANSI /AISC 360-16, Specification for structural steel buildings / American Institude of Steel Construction
2016 / ASCE/SEI 7-16, Minimum design loads and associated criteria for buildings and other structures / American Society of Civil Engineers
2017 / ASCE/SEI 41-17, Seismic evaluation and retrofit of existing buildings / American Society of Civil Engineers
Bakeri, A. E. / 2012 / Optimal design of hysteretic dampers connecting 2-MDOF adjacent structures for random excitations / Int. J. Eng 6(3):184~200
2016 / ANSI /AISC 360-16, Specification for structural steel buildings / American Institude of Steel Construction
2016 / ASCE/SEI 7-16, Minimum design loads and associated criteria for buildings and other structures / American Society of Civil Engineers
2017 / ASCE/SEI 41-17, Seismic evaluation and retrofit of existing buildings / American Society of Civil Engineers
Bakeri, A. E. / 2012 / Optimal design of hysteretic dampers connecting 2-MDOF adjacent structures for random excitations / Int. J. Eng 6(3):184~200
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