Experimental and numerical investigation on the non-uniform temperature distribution of thin-walled steel members under solar radiation

Chen, Deshen; Qian, Hongliang; Wang, Huajie; Chen, You; Fan, Feng; Shen, Shihui

doi:10.1016/j.tws.2017.10.018

Cited by 31 publications

(15 citation statements)

References 19 publications

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“…Many experiments have shown that the temperature of steel members along the length and thickness directions can be assumed to be uniform, while the temperature distribution of member sections along the horizontal and vertical directions is significantly non-uniform [19][20][21]. There are many factors that affect the non-uniform temperature distribution of steel members, such as solar radiation intensity, ambient wind speed, section size, and the surface coating of the steel member [22]. Chen continuously monitored the temperature field of I-shaped steel, a rectangular tube, and a circular tube over a 90-day test period, lasting from July to September in 2015 [23].…”

Section: Space Structuresmentioning

confidence: 99%

“…There are many factors that affect the non-uniform temperature distribution of steel members, such as solar radiation intensity, ambient wind speed, section size, and the surface coating of the steel member [22]. Chen continuously monitored the temperature field of I-shaped steel, a rectangular tube, and a circular tube over a 90-day test period, lasting from July to September in 2015 [23]. Based on the test results, the non-uniformity of the temperature distribution was positively and negatively correlated with solar radiation intensity and ambient wind speed, respectively.…”

Section: Space Structuresmentioning

confidence: 99%

“…Common temperature test equipment includes infrared radiation thermometers [117], thermal resistance sensors [23] and thermocouple sensor [29]. The measurement accuracy of infrared radiation thermometers is relatively low, so thermal resistance sensors and thermocouple sensors are mainly used in temperature field tests for steel structures.…”

Section: Experimental Testmentioning

confidence: 99%

“…Chen's experiment showed that the temperature of a single steel member along the length direction was relatively uniform, and the temperature difference along the thickness direction was negligible, but the temperature distribution through the cross-section was significantly non-uniform [22]. Therefore, temperature sensors are usually arranged along the mid-span section of a single steel member, as was adopted in the experiments of Wang [21] and Liu [20,118].…”

Section: Experimental Testmentioning

confidence: 99%

See 3 more Smart Citations

Non-Uniform Temperature Fields and Effects of Steel Structures: Review and Outlook

Chen

Qian

2020

Applied Sciences

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Due to the dynamic coupling effects of solar radiation, longwave radiation, convective heat transfer, shadows, and other factors, the temperature field and effect of steel structures are significantly non-uniform, differing from traditional concepts that regard the temperature variation of steel structures as a slow and uniform progress. This difference can hinder the correct understanding of the thermal behavior of steel structures and ignore some potential safety hazards. This paper provides a review of the studies for the non-uniform temperature field and effect of steel structures, and presents some outlooks on future developments on the basis of the current research situation. A summary of research on the temperature field and effect of space structures, bridges and radio telescopes initially establishes the basic cognitive framework for this field. In addition, then, the basic principles of the numerical simulation of temperature fields are introduced through heat transfer mechanism, and the experimental test methods of temperature and its effects are described based on typical test cases. Finally, with a view to the future, some suggestions and opinions are provided in consideration of deficiencies in the current research status. This paper hopes to provide some valuable references for future research in this field through research summary, method introduction and outlook.

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Section: Space Structuresmentioning

confidence: 99%

Section: Space Structuresmentioning

confidence: 99%

Section: Experimental Testmentioning

confidence: 99%

Section: Experimental Testmentioning

confidence: 99%

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Non-Uniform Temperature Fields and Effects of Steel Structures: Review and Outlook

Chen

Qian

2020

Applied Sciences

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“…The non-uniform temperature effects are compared with results obtained with the traditional steady-state analysis method. Finally, main factors [26] of temperature effects are also determined, which provides references for the structural design of large-diameter concrete silos.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Non-Uniform Temperature Distribution of Large-Diameter Concrete Silos under Solar Radiation

Zhao

Yang

Wang

2018

Mathematical Problems in Engineering

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There is a growing demand for silos with large diameters and volumes; hence, the stresses induced by the temperature differences between the inner and the outer surfaces of the concrete walls of the large silos become significant. Sunshine is the main source of the temperature differences; and it is necessary to investigate the influences of sunshine on large concrete silos and ensure their safety and durability. In this paper, the temperature distribution of a concrete silo exposed to the sunshine was measured on site. A finite element (FE) model was built to analyze the temperature distribution under the sunshine, and the FE model was validated by comparing the yielded temperature field with that obtained on site. Based on the temperature field yielded in the FE model, the internal forces of the silo were determined by performing a structural analysis. After that, the FE model was extended and used for a parametrical study, and the influences induced by the factors like meteorological parameters, dimension of silos, and reference temperature on the temperature effects of the silo were investigated. The simulation results showed that the temperature gradient exhibited significant nonlinearities along the wall thickness. The performance of a steady-state analytical method was evaluated, which is conventionally used for the design of silos. It was found that, for the silos with the thicknesses of more than 30 centimeters, the steady-state method overestimated the temperature effects. It is suggested here that nonlinear temperature gradients should be employed for considering the temperature effects of large silos.

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Study on Partial Factors and Combination Value Coefficients for Uniform Temperature Action of Large-Span Structures

Yang

et al. 2022

KSCE J Civ Eng

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Experimental and numerical investigation on the non-uniform temperature distribution of thin-walled steel members under solar radiation

Cited by 31 publications

References 19 publications

Non-Uniform Temperature Fields and Effects of Steel Structures: Review and Outlook

Non-Uniform Temperature Fields and Effects of Steel Structures: Review and Outlook

Investigation on the Non-Uniform Temperature Distribution of Large-Diameter Concrete Silos under Solar Radiation

Study on Partial Factors and Combination Value Coefficients for Uniform Temperature Action of Large-Span Structures

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