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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.80 No.4
- 발행연도
- 2021.11
- 수록면
- 401 - 416 (16page)
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This paper presents quasi-static cyclic loading tests of reduced scale reinforced concrete Eccentrically Steel Brace (ESB) retrofitted and bare portal frames. A hollow square steel brace was attached to the beam diagonally at a distance of LBeam/8 from the beam ends for enhancing the seismic performance of deficient frames. Results indicated promising behavior of ESB retrofitted frame opposed to the bare frames and shifted the damage mechanism from severe shear cracking and column flexural hinging to beam flexural cracking. ESB retrofitted frame also increased lateral force-displacement capacity, stiffness and hysteretic damping compared to the bare frames. The test results were also used to calibrate a nonlinear modeling technique proposed using a finite element based program. Additionally, a nonlinear dynamic acceleration time history analysis were carried out for two-story ESB retrofitted and bare frames and inter-story drift limits were identified for each structure. The study also confirms the importance of joint detailing’s and its beneficial role in improving the seismic performance of frames under earthquake ground motions.
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참고문헌 (54)
참고문헌 신청
Ahmad, N. / 2021 / Cyclic response and modelling of special moment resisting beams exhibiting fixed-end rotation / Bull. Earthq. Eng 19:203~240
Alath, S. / 1995 / Modeling inelastic shear deformation in RC beam-column joints / Proceedings of the 10th Conference on Engineering Mechanics
Altoontash, A. / 2004 / Simulation and damage models for performance assessment of reinforced concrete beam-column joints
Arslan, M. H. / 2007 / What is to be learned from damage and failure of reinforced concrete structures during recent earthquakes in Turkey? / Eng. Fail. Anal 14(1):1~22
Badoux, M. / 1990 / Steel bracing of RC frames for seismic retrofitting / J. Struct. Eng 116(1):55~74
Alath, S. / 1995 / Modeling inelastic shear deformation in RC beam-column joints / Proceedings of the 10th Conference on Engineering Mechanics
Altoontash, A. / 2004 / Simulation and damage models for performance assessment of reinforced concrete beam-column joints
Arslan, M. H. / 2007 / What is to be learned from damage and failure of reinforced concrete structures during recent earthquakes in Turkey? / Eng. Fail. Anal 14(1):1~22
Badoux, M. / 1990 / Steel bracing of RC frames for seismic retrofitting / J. Struct. Eng 116(1):55~74
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