Effects of non-uniform temperature on closure construction of spatial truss structure

Chen, Deshen; Xu, Wucheng; Qian, Hongliang; Sun, Jianyun; Li, Jingfang

doi:10.1016/j.jobe.2020.101532

Cited by 18 publications

(7 citation statements)

References 26 publications

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“…The roof of the indoor water recreation project Tien Rice Cube is composed of glass and light steel, and the temperature of steel members under glass roof is significantly higher than that under light steel rooves, with a structural temperature difference of 24 • C at noon in summer [29]. A large number of studies for practical engineering show that the temperature fields of space structures are significantly non-uniform [30][31][32], and the non-uniformity is positively correlated with the intensity of solar radiation [8]. The temperature effects of space structures, which includes thermal stress and deformation, caused by non-uniform temperature fields are more significant than those under traditional uniform temperature loads, and the high degree of deformation directly affects the structural construction quality [33].…”

Section: Space Structuresmentioning

confidence: 99%

“…During the construction period, steel structures are exposed to solar radiation, and their non-uniform temperature distributions can cause complex temperature effects, which will directly affect engineering construction quality and structural closure accuracy [7,8], and the possible construction defects can even lead to potential safety hazards [9]. During the service period, the temperature fields of steel structures under outdoor or transparent rooves are also non-uniform, and the temperature effects caused by this not only reduce the structural working performance, but can even result in some damage [10].…”

Section: Introductionmentioning

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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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: Introductionmentioning

confidence: 99%

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

Chen

Qian

2020

Applied Sciences

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“…Under strong sunlight, the surface temperature of large-span steel structures is much higher than the atmospheric temperature, which generates transient inhomogeneous temperature fields in the steel structure and changes continuously with time. In addition, the variable temperature and restraint can cause large thermal deformation in large-span steel structures, and if not properly resolved, the temperature stresses can cause excessive rod displacement, increased bearing reactions and steel structure strength degradation [1].…”

Section: Introductionmentioning

confidence: 99%

Study of temperature field in large-span steel structure under radiation-thermal-fluid coupling

2023

Archives of Civil Engineering

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The non-uniformity of temperature field distribution of long-span steel structure is proportional to the intensity of solar radiation. Based on the background of Guangzhou Baiyun Station large-span complex steel roof structure, this paper studies the non-uniform temperature field distribution of large-span steel structure under the Summer Solstice daily radiation-thermal-fluid coupling action based on Star-ccm+ finite element software, and uses Spa2000 software to analyze the stress and deformation of steel roof under temperature action. Combined with the on-site temperature monitoring, the maximum difference with the measured value is 2.5 • C compared with the numerical simulation results, which verifies the validity of the finite element simulation. The results show that: from 8:00, with the increase of solar altitude angle, the intensity of solar radiation increases, the temperature rises, and the temperature distribution of large-span steel structure becomes more and more non-uniform. From14:00 to18:00, the solar radiation weakens, and the temperature distribution tends to be uniform. Finally, reasonable construction suggestions and measures are proposed to reduce the adverse effects of temperature effects, which can provide theoretical references for the safe construction and normal operation of large-span steel structures located in the subtropics.

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“…In Structures, 39: 901-916. DOI: 10.1016/j.istruc.2022.03.065 3 In literature, the non-uniform thermal load has been analyzed for many complex three-dimensional structures (Chen et al, 2020), (Chen et al, 2021) considering also the fatigue effects caused by cyclic thermal loads (Wang at al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Sardinia Radio Telescope structural behavior under solar thermal load

et al. 2022

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Effects of non-uniform temperature on closure construction of spatial truss structure

Cited by 18 publications

References 26 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

Study of temperature field in large-span steel structure under radiation-thermal-fluid coupling

Sardinia Radio Telescope structural behavior under solar thermal load

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