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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.18 No.4
- 발행연도
- 2016.1
- 수록면
- 779 - 792 (14page)
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초록· 키워드
오류제보하기
High-strength prestressing tendons with a tensile strength of 2400 MPa have been recently developed in the steel industry of South Korea, and is currently being mass produced for common commercial applications in structural engineering practices. Accordingly, since most of the existing transfer length estimation models were derived based on the test results of the specimens having the prestressing tendons with a tensile strength of 1860 MPa or less, modifications of the transfer length models are now required to consider the effect of the enhanced tensile strength of the prestressing tendons. In this study, six pretensioned concrete specimens reinforced with 2400 MPa tensile strength prestressing tendons were fabricated and tested to investigate their transfer lengths. In addition, a simplified design equation for the transfer length was developed based on the assumption of the linear strain profile curves of the prestressing tendon and surrounding concrete in transfer length zone. The accuracy of the proposed equation was verified in detail by comparing a total of 215 transfer length test results with analysis results. The simplified design equation provided very accurate results on the transfer lengths of all the test specimens, regardless of the tensile strength grades of prestressing tendons.
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참고문헌 (28)
참고문헌 신청
2011 / ACI Committee 318,Building Code Requirements for Structural Concrete (ACI318-11) and Commentary / American Concrete Institute
American Association of state Highway and Transportation Officials / 2010 / AASHTO LRFD Bridge Design Specifications: Customary U.S. Units / AASHTO
Barnes, R. W. / 2003 / Experimental assessment of factors affecting transfer length / ACI Struct. J 100(6):740~748
Brooks, M. D. / 1988 / Effect of initial strand slip on the strength of hollowcore slabs / PCI J 33(1):90~111
Buckner, C. D. / 1995 / A review of strand development length for pretensioned concrete members / PCI J 40(2):84~105
American Association of state Highway and Transportation Officials / 2010 / AASHTO LRFD Bridge Design Specifications: Customary U.S. Units / AASHTO
Barnes, R. W. / 2003 / Experimental assessment of factors affecting transfer length / ACI Struct. J 100(6):740~748
Brooks, M. D. / 1988 / Effect of initial strand slip on the strength of hollowcore slabs / PCI J 33(1):90~111
Buckner, C. D. / 1995 / A review of strand development length for pretensioned concrete members / PCI J 40(2):84~105
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