재하시 재령과 습도의 영향을 고려한 콘크리트의 합리적인 인장크리프 모델

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이형준;오병환

  • 발행 : 1999.08.01

초록

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.

키워드

Creep;Tensile creep;Time-dependent analysis;Nonlinearity of creep;Time-dependent tensile failure

참고문헌

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