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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.26 No.4
- 발행연도
- 2020.1
- 수록면
- 343 - 350 (8page)
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초록· 키워드
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Concrete-filled steel tubular (CFST) members have been widely used in engineering, and their tube diameters have become larger and larger. But there is no research on the thermal field of large-diameter CFST structure. These studies focused on the thermal field of the large-diameter CFST structure under solar radiation. The environmental factors and the actual placement position were considered, and the finite element model (FEM) of the thermal field of CFST members under solar radiation (SR) was established. Then the FEM was verified by practical experiments. The most unfavorable temperature gradient model in the cross-section was proposed. The testing results showed that the temperature field of the large-diameter CFST member section was non-linearly distributed due to the influence of SR. The temperature field results of CFST members with different pipe diameters indicated that the larger the core concrete diameter was, the slower the central temperature changed, and there was a significant temperature difference between the center and the boundary. Based on the numerical model, the most unfavorable temperature gradient model in the section was proposed. The model showed that the temperature difference around the center of the circle is small, and the boundary temperature difference is significant. The maximum temperature difference is 15.22°C, which appeared in the southern boundary area of the specimen. Therefore, it is necessary to consider the influence of SR on the thermal field of the member for large-diameter CFST members in actual engineering, which causes a large temperature gradient in the member.
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참고문헌 (28)
참고문헌 신청
Sallal R. Abid / 2018 / Experimental and finite element investigation of temperature distributions in concrete-encased steel girders / Structural Control and Health Monitoring 25(1):e2042
Shingo Asamoto / 2006 / Time-Dependent Constitutive Model of Solidifying Concrete Based on Thermodynamic State of Moisture in Fine Pores / Journal of Advanced Concrete Technology 4(2):301~323
Shingo Asamoto / 2011 / Study on effects of solar radiation and rain on shrinkage, shrinkage cracking and creep of concrete / Cement and Concrete Research 41(6):590~601
M Daoud / 1997 / Calculation of the periodic temperature field in a concrete dam / Canadian Journal of Civil Engineering 24(5):772~784
J.J. del Coz Díaz / 2006 / Non-linear thermal analysis of light concrete hollow brick walls by the finite element method and experimental validation / Applied Thermal Engineering 26(8-9):777~786
Shingo Asamoto / 2006 / Time-Dependent Constitutive Model of Solidifying Concrete Based on Thermodynamic State of Moisture in Fine Pores / Journal of Advanced Concrete Technology 4(2):301~323
Shingo Asamoto / 2011 / Study on effects of solar radiation and rain on shrinkage, shrinkage cracking and creep of concrete / Cement and Concrete Research 41(6):590~601
M Daoud / 1997 / Calculation of the periodic temperature field in a concrete dam / Canadian Journal of Civil Engineering 24(5):772~784
J.J. del Coz Díaz / 2006 / Non-linear thermal analysis of light concrete hollow brick walls by the finite element method and experimental validation / Applied Thermal Engineering 26(8-9):777~786
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