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논문 기본 정보

자료유형
학술저널
저자정보
Sung-Chul Chun (Daewoo Institute of Construction Technology) Sung-Ho Lee (Daewoo Institute of Construction Technology) Bohwan Oh (Daewoo Institute of Construction Technology)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.4 No.1
발행연도
2010.6
수록면
63 - 68 (6page)

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초록· 키워드

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With the emergence of ultra-high strength of concrete, the compression lap splice has become an important area of interest. According to ACI 318-08, a compression splice can be longer than a tension splice when high-strength concrete is used. By reevaluating the test results of compression splices and performing regression analysis, a simplified design equation for splice length in compression was developed based on the basic form of design equations for development/splice lengths of deformed bars and hooks in tension. A simple linear relation between l<SUB>s</SUB> / d<SUB>b</SUB> and f<SUB>sc</SUB>f¹cwas assumed, and yields good values for the correlation coefficient and the mean and the COV (coefficient of variation) of the ratios of tests to predictions of splice strengths in compression. By including the 5% fractile coefficient of 0.83, a design equation for splice length in compression was developed. The splice length calculated using the proposed equation has a reliability that is equivalent to other provisions for reinforcing bars.

목차

Abstract
1. Introduction
2. Objectives
3. Design equations of development andsplice lengths
4. Experimental program
5. Simplified model for lap splice incompression
6. Design example
7. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2014-530-002800722