한국지진공학회논문집 (Journal of the Earthquake Engineering Society of Korea)

  • 제23권2호
  • /
  • Pages.119-129
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  • 2019
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  • 1226-525X(pISSN)
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  • 2234-1099(eISSN)
한국지진공학회 (Earthquake Engineering Society of Korea)
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비연성 RC 기둥의 하중-변형 응답 모사를 위한 모델 매개변수 제안

Development of Model Parameter Prediction Equations for Simulating Load-deformation Response of Non-ductile RC Columns

  • Lee, Chang Seok (Department of Architectural Engineering, Hanyang University) ;
  • Han, Sang Whan (Department of Architectural Engineering, Hanyang University)
  • 투고 : 2018.12.07
  • 심사 : 2019.01.31
  • 발행 : 2019.03.01
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초록

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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참고문헌

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