Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Tensile Creep Model of Concrete Incorporation the Effects of Humidity and Time at Loading

재하시 재령과 습도의 영향을 고려한 콘크리트의 합리적인 인장크리프 모델

  • 이형준 (한국도로공사 도로연구소 책임연구원) ;
  • 오병환 (서울대학교 토목공학과)
  • Published : 1999.08.01
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Abstract

The creep characteristics of concrete under tensile stress has been usually assumed to have the same characteristics as that under compressive stress in the time-dependent analysis of concrete structures. However, it appears from the recent experimental studies that tensile creep behavior is much different from compressive one. In particular, high sustaining tensile stress may cause time-dependent cracking and thus lead to tensile failure. It is, therefore, necessary to model the tensile creep behavior accurately for realistic time-dependent analysis of concrete structures. The present paper to have been focused to suggested more realistic model for the tensile creep behavior of concrete. The models are compared with tensile creep test data available in the literature. The proposed model may allow more refined analysis of concrete structures under time-dependent loading.

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References

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