Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Experimental Evaluation of the Seismic Performance and Engineering Damage State of Reinforced Concrete Columns

철근콘크리트 기둥의 내진성능 및 공학적 손상상태에 대한 실험적 평가

  • Lee, Do Hyung (Department of Civil, Railroad and Unmanned Systems Engineering, PaiChai University)
  • 이도형 (배재대학교 드론.철도건설공학과)
  • Received : 2023.01.10
  • Accepted : 2023.02.07
  • Published : 2023.03.01
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Abstract

In this paper, seismic performance evaluation was carried out for eight circular reinforced concrete columns designed seismically by KRTA[1]and KCI[8]. Primary design parameters for such columns included many longitudinal reinforcements, yield strength of reinforcements, the vertical spacing of spirals, aspect ratio, and axial force ratio. The test results showed that all the columns exhibited stable hysteretic and inelastic responses. Based on the test results, drift ratios corresponding to each damage state, such as initial yielding, initial cover spalling, initial core concrete crushing, buckling, and fracture of longitudinal reinforcement and final spalled region, were evaluated. Then, those ratios were compared with widely accepted damage limit states. The comparison revealed that the existing damage states were considerably conservative. This implies that additional research is required for the damage limit states of such columns designed seismically by current Korean design codes.

Keywords

Acknowledgement

본 논문은 2022학년도 배재대학교 교내 학술연구비 지원에 의하여 수행되었습니다.

References

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