Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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A Study on the Comparison and Evaluation of the Stress-Strain Relationships of Concrete

콘크리트의 응력-변형률 모델 비교 평가 연구

  • 박훈규 (정회원, 금오공과대학 토목공학과) ;
  • 원종필 (정회원, 한국도로공사 도로연구소 책임연구원) ;
  • 윤영수 (정회원, 고려대학교 토목환경공학과) ;
  • 장일영 (정회원, 금오공과대학 토목공학과교수)
  • Published : 1997.04.01
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Abstract

This paper presents the comparison and evaluation of the existing test results and empirical formulas of high-strength concrete available in the literature for various types of models to describe the stress-strain relationship. The range of concrete compressive strength taken into account in this study was 400 to 1200kg/㎠ and the comprehensive assessment of each linearly varying ascending part and brittle type of descending one of each model was carried out. The results show that the fixed curve equation seems to be recommended to well describe the ascending part and so does Fafitis' exponential equation for the descending part in the stress-strain relationship of the high and ultra high-strength concrete.

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