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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.67 No.1
- 발행연도
- 2018.1
- 수록면
- 1 - 8 (8page)
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초록· 키워드
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Shake table tests performed on five 1:3 reduced scale two story RC moment resisting frames having construction defects, have shown severe joint damageability in deficient RC frames, resulting in joint panels’ cover spalling and core concrete crushing. Haunch retrofitting technique was adopted herein to upgrade the seismic resistance of the deficient RC frames. Additional four deficient RC frames were built and retrofitted with steel haunch; both axially stiffer and deformable with energy dissipation, fixed to the beam-column connections to reduce shear demand on joint panels. The as-built and retrofitted frames’ seismic response parameters are calculated and compared to evaluate the viability of haunch retrofitting technique. The haunch retrofitting technique increased the lateral stiffness and strength of the structure, resulting in the increase of structure’s overstrength. The retrofitting increased response modification factor R by 60% to 100%. Further, the input excitation PGA was correlated with the lateral roof displacement to derive structure response curve that have shown significant resistance of retrofitted models against input excitations. The technique can significantly enhance the seismic performance of deficient RC frames, particularly against the frequent and rare earthquake events, hence, promising for seismic risk mitigation.
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참고문헌 (26)
참고문헌 신청
2005 / ACI 318, Building Code Requirements for Structural Concrete and Commentary
Ahmad, N. / 2017 / Seismic performance assessment of non-compliant SMRF reinforced concrete frame: Shake table test study / J. Earthq. Eng. :1~19
Appa-Rao, G. / 2013 / Strengthening of shear deficient rc beam-column joints in mrfs under seismic loading / Proceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures
Badrashi, Y.I. / 2010 / Reinforced Concrete Buildings in Pakistan-Housing Report
BCP-SP / 2007 / Building Code of Pakistan: Seismic Provision / Ministry of Housing and Works
Ahmad, N. / 2017 / Seismic performance assessment of non-compliant SMRF reinforced concrete frame: Shake table test study / J. Earthq. Eng. :1~19
Appa-Rao, G. / 2013 / Strengthening of shear deficient rc beam-column joints in mrfs under seismic loading / Proceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures
Badrashi, Y.I. / 2010 / Reinforced Concrete Buildings in Pakistan-Housing Report
BCP-SP / 2007 / Building Code of Pakistan: Seismic Provision / Ministry of Housing and Works
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