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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 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.41 No.1
- 발행연도
- 2021.10
- 수록면
- 137 - 147 (11page)
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초록· 키워드
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The curved composite box-girders (CBGs) with corrugated steel webs (CSWs) have been used widely in bridges due to their great advantages and the demand of the road alignment, but the curvature makes both the static and dynamic behaviors more complex. To research the free vibration performance of the curved CBGs with CSWs, 5 simply-supported test girders were designed with the span-to-radius ratio (λ=L/R), the number of the cells of the box section, and the number of the diaphragms as parameters. The natural frequencies and mode shapes were measured in the experiment. The experimental results were compared with the numerical results using ANSYS software, and a satisfying agreement was obtained. The parametric analysis shows that for the curved CBG with CSWs, the vertical mode shapes are combined flexural and torsion, and the contribution of the torsional effects to the mode shapes and frequencies improve with the increase of λ, which leads to a decrease in the vertical and lateral frequencies and increase in the torsional frequency. The corrugated angle of the steel web has little effect on the natural frequencies of the curved CBGs with CSWs. Increasing the thickness of the steel web and the number of the diaphragms can improve the torsional rigidity of the curved CBG with CSWs effectively; while the deck width has a great contribution on the lateral rigidity.
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참고문헌 (21)
참고문헌 신청
Anwar Androus / 2017 / Investigation of free vibration and ultimate behavior of composite twin-box girder bridges / Journal of Constructional Steel Research 130:177~192
Liang Cao / 2018 / Theoretical and Numerical Study on the Natural Frequencies of Bridges With Corrugated Steel Webs / Structures 15:224~231
China Association for Standardization of Engineering Construction / 2011 / Technical specification for steel structures with corrugated webs / CECS 291: 2011, China Planning Publishing House
Ramon Macedo Corrêa / 2021 / Free in-plane vibration analysis of curved beams by the generalized/extended finite element method / European Journal of Mechanics - A/Solids 88:104244~12
M.A. De Rosa / 2021 / Closed-form solutions for vibrations analysis of cracked Timoshenko beams on elastic medium: An analytically approach / Engineering Structures 236:111946~9
Liang Cao / 2018 / Theoretical and Numerical Study on the Natural Frequencies of Bridges With Corrugated Steel Webs / Structures 15:224~231
China Association for Standardization of Engineering Construction / 2011 / Technical specification for steel structures with corrugated webs / CECS 291: 2011, China Planning Publishing House
Ramon Macedo Corrêa / 2021 / Free in-plane vibration analysis of curved beams by the generalized/extended finite element method / European Journal of Mechanics - A/Solids 88:104244~12
M.A. De Rosa / 2021 / Closed-form solutions for vibrations analysis of cracked Timoshenko beams on elastic medium: An analytically approach / Engineering Structures 236:111946~9
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