한국지진공학회논문집 (Journal of the Earthquake Engineering Society of Korea)

  • 제21권1호
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  • Pages.59-67
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  • 2017
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  • 1226-525X(pISSN)
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  • 2234-1099(eISSN)
한국지진공학회 (Earthquake Engineering Society of Korea)
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횡구속 콘크리트의 압축 응력-변형률 모델 : Part II. 사각단면 부재

Stress-Strain Model for Laterally Confined Concrete : Part II. Rectangular Sectional Members

  • 투고 : 2016.07.10
  • 심사 : 2016.12.01
  • 발행 : 2017.01.01
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초록

Due to a lack of the hoop action of lateral reinforcements the effective confining force in rectangular sections reduces compared to circular ones. Therefore, the stress-strain model obtained from the experimental data with circular sections overestimates the lateral confinement effect in rectangular sections, which evaluates seismic safety margin of overall structural system excessively. In this study experiments with laterally-confined square sections have been performed and the characteristic values composing stress-strain model have been analyzed. With introduction of section coefficients, in addition, the new unified stress-strain model applicable to square sections as well as circular ones has been proposed.

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참고문헌

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