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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.8
- 수록면
- 215 - 222 (8page)
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초록· 키워드
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This study addresses the seismic performance of existing reinforced concrete (RC) buildings, which were primarily designed for gravity loads alone. Assessing the buildings’ seismic capability requires understanding the deformation capacity of the lightly reinforced concrete columns within them. The study’s objective is twofold: to establish a procedure for categorizing column failure modes, and to present equations for predicting deformation capacities based on these failure modes. To achieve this, data from 189 lightly reinforced concrete columns across 53 different studies were collected. The effectiveness of the newly proposed failure classification procedure was validated by comparing its outcomes to the observed failure modes of the columns. Significantly improved accuracy was demonstrated compared to existing classification methods. The study further introduced empirical equations for forecasting column deformation capacity through regression analysis. These equations were validated by comparing calculated deformation capacities to actual measurements from column specimens. The empirical equations proposed in this study showed markedly higher coefficients of determination compared to existing equations proposed by Zhu, Elwood, & Haukaas (2007) and ASCE 41 (2017). This demonstrates that the suggested empirical equations can effectively forecast both the failure mode and deformation capacity of the lightly reinforced concrete columns.
목차
Abstract
1. 서론
2. RC 기둥 데이터베이스 수집
3. RC 기둥의 파괴 모드 분류 방법
4. 파괴 모드에 따른 노후 RC 기둥의 변형 능력 예측을 위한 경험식 제안
5. RC 기둥 θmax 경험식에 대한 정확도 평가
6. 결론
REFERENCES
참고문헌 (25)
참고문헌 신청
American Society of Civil Engineers. (2017). Seismic evaluation and retrofit of existing buildings. American Society of Civil Engineers.
Azadi Kakavand, M. R., & Allahvirdizadeh R. (2019). Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural, shear, or axial failure modes. Frontiers of Structural and Civil Engineering, 13, 1251-1270.
Berry, M., Parrish, M., & Eberhard, M. (2004). PEER structural performance database user’s manual. University of California, Berkeley.
Elwood, K. J., & Eberhard, M. O. (2009). Effective stiffness of reinforced concrete columns. ACI Structural Journal, 106(4).
Elwood, K. J., & Moehle, J. P. (2005). Drift capacity of reinforced concrete columns with light transverse reinforcement. Earthquake Spectra, 21(1), 71-89.
Azadi Kakavand, M. R., & Allahvirdizadeh R. (2019). Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural, shear, or axial failure modes. Frontiers of Structural and Civil Engineering, 13, 1251-1270.
Berry, M., Parrish, M., & Eberhard, M. (2004). PEER structural performance database user’s manual. University of California, Berkeley.
Elwood, K. J., & Eberhard, M. O. (2009). Effective stiffness of reinforced concrete columns. ACI Structural Journal, 106(4).
Elwood, K. J., & Moehle, J. P. (2005). Drift capacity of reinforced concrete columns with light transverse reinforcement. Earthquake Spectra, 21(1), 71-89.
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UCI(KEPA) : I410-ECN-0102-2023-540-002018245