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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.67 No.3
- 발행연도
- 2018.1
- 수록면
- 255 - 265 (11page)
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초록· 키워드
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The prestress force effect on the fundamental frequency and deflection shape of Prestressed Concrete I (PCI) beams was studied in this paper. Currently, due to the conflicts among existing theories, the analytical solution for properly considering the structural behavior of these prestressed members is not clear. A series of experiments were conducted on a large-scale PCI beam of high strength concrete with an eccentric straight unbonded tendon. Specifically, the simply supported PCI beam was subjected to free vibration and three-point bending tests with different prestress forces. Subsequently, the experimental data were compared with analytical results based on the Euler-Bernoulli beam theory. It was proved that the fundamental frequency of PCI beams is unaffected by the increasing applied prestress force, if the variation of the initial elastic modulus of concrete with time is considered. Vice versa, the relationship between the deflection shape and prestress force is well described by the magnification factor formula of the compression-softening theory assuming the secant elastic modulus.
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참고문헌 (39)
참고문헌 신청
2014 / ACI 318, Building Code Requirements for Structural Concrete and Commentary / American Concrete Institute
Annual Book of ASTM Standards / 2016 / Section 4: Construction vol. 04.02. Concrete & Aggregates / American Society for Testing & Materials
Bazant, Z.P. / 1991 / Stability of Structures / Oxford University Press
Bonopera, M. / 2018 / Compressive column load identification in steel space frames using second-order deflection-based methods / Int. J. Struct. Stab. Dyn. 18(7):1850092
Marco Bonopera / 2018 / Axial load detection in compressed steel beams using FBG–DSM sensors / Smart Structures and Systems, An International Journal 21(1):53~64
Annual Book of ASTM Standards / 2016 / Section 4: Construction vol. 04.02. Concrete & Aggregates / American Society for Testing & Materials
Bazant, Z.P. / 1991 / Stability of Structures / Oxford University Press
Bonopera, M. / 2018 / Compressive column load identification in steel space frames using second-order deflection-based methods / Int. J. Struct. Stab. Dyn. 18(7):1850092
Marco Bonopera / 2018 / Axial load detection in compressed steel beams using FBG–DSM sensors / Smart Structures and Systems, An International Journal 21(1):53~64
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