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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.77 No.4
- 발행연도
- 2021.1
- 수록면
- 559 - 569 (11page)
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This study was conducted to investigate the residual bearing capacity of steel-concrete composite beams under highcycle fatigue loading through experiments and theoretical analysis. Six test beams with stud connectors were designed and fabricated for static, complete fatigue, and partial fatigue tests. The failure modes and the degradation of several mechanical performance indicators of the composite beams under high-cycle fatigue loading were analyzed. A calculation method for the residual bearing capacity of the composite beams after certain quantities of cyclic loading cycles was established by introducing nonlinear fatigue damage models for concrete, steel beam, and shear connectors beginning with the material residual strength attenuation process. The results show that the failure mode of the composite beams under the given fatigue load appears to be primarily affected by the number of cycles. As the number of fatigue loadings increases, the failure mode transforms from midspan concrete crushing to stud cutting. The bearing capacity of a 3.0-m span composite beam after two million fatigue cycles is degraded by 30.7% due to premature failure of the stud. The calculated values of the residual bearing capacity method of the composite beam established in this paper agree well with the test values, which indicates that the model is feasibly applicable.
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참고문헌 (7)
참고문헌 신청
Tepfers, R. / 1979 / Fatigue strength of plain, ordinary, and lightweight concrete / J. Proc. 76(5):635~652
L. K. Varshney / 2019 / An efficient and novel strategy for control of cracking, creep and shrinkage effects in steel-concrete composite beams / Structural Engineering and Mechanics, An Int＇l Journal 70(6):751~763
Bing Wang / 2017 / Deterioration in strength of studs based on two-parameter fatigue failure criterion / Steel and Composite Structures, An International Journal 23(2):239~250
Wang, B. / 2017 / Experimental investigation of steel-concrete composite beams with different degrees of shear connection under monotonic and fatigue loads / Adv. Struct. Eng 21(2):227~240
Yu-Hang, W. / 2014 / Study on fatigue property of steel-concrete composite beams and studs / J. Constr. Steel Res 94:1~10
L. K. Varshney / 2019 / An efficient and novel strategy for control of cracking, creep and shrinkage effects in steel-concrete composite beams / Structural Engineering and Mechanics, An Int＇l Journal 70(6):751~763
Bing Wang / 2017 / Deterioration in strength of studs based on two-parameter fatigue failure criterion / Steel and Composite Structures, An International Journal 23(2):239~250
Wang, B. / 2017 / Experimental investigation of steel-concrete composite beams with different degrees of shear connection under monotonic and fatigue loads / Adv. Struct. Eng 21(2):227~240
Yu-Hang, W. / 2014 / Study on fatigue property of steel-concrete composite beams and studs / J. Constr. Steel Res 94:1~10
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