The Age-adjusted effective Modulus Method(AEMM) is one of the methods adopted for the construction stage analysis of concrete structures. The AEMM uses the aging factor to consider the effects of the varying concrete stress. In the aspects of computation time and the accuracy of the results, the AEMM is considered as one of most appropriate methods for construction stage analysis of tall building structures. Previous researches proposed appropriate values of the aging factor in the forms of graphs or using very simple equations. In this paper, an equation for estimating the aging factor as a function of rebar ratio in the section, compressive strength of concrete, notional member dimension, and age of concrete at the load application. The validity of aging factor proposed in this paper were examined by the comparison with the results of step-by step method.

 Abstract  1. 서 론  2. 시공단계해석   2.1 재료모델   2.2 장기거동해석  3. 재령계수 분석   3.1 철근비   3.2 재하시점   3.3 압축강도   3.4 개념부재치수  4. 재령계수식 제안  5. 결 론  감사의 글  References

• 유재욱(한양대학교 건축공학과 석사) | Yoo, Jae-Wook
• 유은종( 한양대학교 건축공학과 교수, 공학박사) | 유은종