Many reinforced concrete (RC) buildings constructed prior to 1980's lack important features guaranteeing ductile response under earthquake excitation. Structural components in such buildings, especially columns, do not satisfy the reinforcement details demanded by current seismic design codes. Columns with deficient reinforcement details may suffer significant damage when subjected to cyclic lateral loads. They can also experience rapid lateral strength degradation induced by shear failure. The objective of this study is to accurately simulate the load-deformation response of RC columns experiencing shear failure. In order to do so, model parameters are calibrated to the load-deformation response of 40 RC column specimens failed in shear. Multivariate stepwise regression analyses are conducted to develop the relationship between the model parameters and physical parameters of RC column specimens. It is shown that the proposed predictive equations successfully estimated the model parameters of RC column specimens with great accuracy. The proposed equations also showed better accuracy than the existing ones.

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 1. 서 론
 2. 비연성 RC기둥 해석 모델 선행연구 분석
 3. 비연성 RC기둥의 하중-변형 응답 예측을 위한수치모델
 4. RC 기둥 데이터베이스
 5. 해설모델매개변수 계측 (Calibration)
  5.1 뼈대곡선매개변수 계측
  5.2 핀칭매개변수 계측
  5.3 강도 및 강성저감 매개변수
 6. 모델매개변수 예측식 개발
 7. 모델매개변수 예측식의 정확도 평가
  7.1 하중-변형 응답 모사 결과
  7.2 모델매개변수 예측 오차의 통계적 평가
 8. 요약 및 결론
 REFERENCES

• 이창석(한양대학교 건축공학과 박사후연구원) | Lee Chang Seok (Department of Architectural Engineering, Hanyang University)
• 한상환(한양대학교 건축공학과) | Han Sang Whan (Department of Architectural Engineering, Hanyang University) Corresponding author