This study proposes a numerical modeling approach to estimate the monotonic backbone curve of reinforced concrete (RC) columns based on cyclic loading tests. Backbone curves derived from cyclic loading tests tend to underestimate deformation capacity, leading to inaccurate predictions of post-peak behavior. To address this limitation, the IMKPinching model is adopted, with post-peak deformation capacity treated as a key parameter. A procedure is proposed to estimate the parameters of a monotonic backbone curve from cyclic data. The proposed approach was validated by comparing with monotonic test results, demonstrating a significant improvement in post-peak prediction accuracy.

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1. 서 론
2. IMKPinching 모델의 뼈대 곡선
3. 이상화된 뼈대 곡선
    3.1 단조 뼈대 곡선 제안
    3.2 단조 뼈대 곡선 매개 변수 결정
4. 제안된 단조 뼈대 곡선의 검증
5. 결 론
6. Notation
/ REFERENCES /

• 구수현(한양대학교 건축공학과 박사후연구원) | Koo Su Hyun (Postdoctoral Researcher, Department of Architectural Engineering, Hanyang University)
• 송아현(한양대학교 건축공학과 석사과정) | Song Ah Hyun (Graduate Student, Department of Architectural Engineering, Hanyang University)
• 한상환(한양대학교 건축공학과 교수) | Han Sang Whan (Professor, Department of Architectural Engineering) Corresponding author