Browse > Article
http://dx.doi.org/10.4334/JKCI.2002.14.5.726

Shrinkage Stress Analysis of Concrete Slab with Shrinkage Strip in Multi-Story Building  

김한수 (현대건설(주) 기술연구소)
조석희 (현대건설(주) 기술연구소)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.5, 2002 , pp. 726-733 More about this Journal
Abstract
Shrinkage strip or separation strip is a temporary joint that is left open for a certain time during construction to allow a significant part of the shrinkage to take place without inducing stress. A shrinkage stress analysis method of shrinkage strip in concrete slab of multi-story building considering the relaxation effect of creep and construction sequence is proposed. The analysis results of 10-story example building show that the effect of shrinkage strip can be analyzed easily by the proposed method. And shrinkage strip installed in a particular floor makes the stress of that floor reduced and the stress of the other floors increased a little. The rate and amount of stress reduced with closing time mainly depends on the development of shrinkage with time of concrete model used. The amount of stress reduced is determined by the amount of shrinkage strain developed before the closing of shrinkage strip.
Keywords
shrinkage strip; creep; retaxation; shrinkage; shrinkage analysis; construction sequence analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Bazant, Z. P., "Prediction of Concrete Effects Using Age-Adjusted Effective Modulus Method," Journal of the American Concrete Institute, Vol. 69, No. 4, 1972. 4, pp.212-217.
2 Bathe, K. J., "Finite Element Procedures in Engineering Analysis," Prentice-Hall, 1982, 294-297.
3 Fintel, Mark, "Handbook of Concrete Engineering-2nd Ed," Van Nostrand Reinhold Company, 1985, pp.133.
4 Bazant, Z. P., "Numerical Determinatin of Long-Range Stress History from Strain History in Concrete," Materials and Structures, Vol. 5, 1972, pp. 135-141.   DOI
5 ACI Committee 209, "Prediction of Creep, Shrinkage, and Temperature Effects in Concrete Structure," ACI209R-92, American Concrete Institute, 1997.
6 Comite Euro-Internatioal Du Beton, CEB-FIP Model Code 1990, Thomas Telford Services Ltd., 1993, pp.33-58.
7 한국콘크리트학회, 건설교통부제정 콘크리트구조설계기준, 기문당, 1999, pp.41-50.
8 김한수,조석희,"고층건물 콘크리트 슬래브에서 분리대의 효과," 한국전산구조공학회 봄학술발표회 논문집, 제13권 1집, 2000, pp.238-245.   과학기술학회마을
9 ACI Committee 224, "Control of Cracking in Concrete Structures," ACI224R-90, American Concrete Institute, 1997.
10 김록배,김욱종,이도범,이운세, "건조수축 및 온도영향에 대한 건조수축대의 효과 연구," 한국콘크리트학회 가을학술발표회 논문집, 2001, pp.251-256.   과학기술학회마을