A three-dimensional method for the simulation of temperature fields induced by solar radiation

Yan, Yihang; Wu, Di; Li, Qi

doi:10.1177/1369433218795254

Cited by 10 publications

(9 citation statements)

References 19 publications

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“…It was established that there are a number of studies on determining the temperature fields and stresses in bridge structures without reinforcement under the action of climatic temperature influences of the environment [3][4][5][6][7][8][9].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Paper [7] simulates the distribution of a temperature field across a concrete beam, which takes into consideration the shadow effects and changes in the intensity of solar radiation during the day. The results show that the temperature field of the concrete beam has obvious nonlinear characteristics of the distribution.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…However, works [7][8][9] did not assess the thermoelastic state of composite beams strengthened by methyl methacrylate compositions.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Studies [10][11][12][13][14][15], similarly to works [7][8][9], reported no results in assessing the thermoelastic state of a bridge slab reinforced with methyl methacrylate compositions.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Procedure for determining the thermoelastic state of a reinforced concrete bridge beam strengthened with methyl methacrylate

Kovalchuk

Sobolevska

Onyshchenko

et al. 2021

EEJET

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This paper reports the analysis of methods for determining temperature stresses and deformations in bridge structures under the influence of climatic temperature changes in the environment. A one-dimensional model has been applied to determine the temperature field and thermoelastic state in order to practically estimate the temperature fields and stresses of strengthened beams taking into consideration temperature changes in the environment. The temperature field distribution has been determined in the vertical direction of a reinforced concrete beam depending on the thickness of the structural reinforcement with methyl methacrylate. It was established that there is a change in the temperature gradient in a contact between the reinforced concrete beam and reinforcement. The distribution of temperature stresses in the vertical direction of a strengthened reinforced concrete beam has been defined, taking into consideration the thickness of the reinforcement with methyl methacrylate and the value of its elasticity module. It was established that the thickness of the reinforcement does not have a significant impact on increasing stresses while increasing the elasticity module of the structural reinforcement leads to an increase in temperature stresses. The difference in the derived stress values for a beam with methyl methacrylate reinforcement with a thickness of 10 mm and 20 mm, at elasticity module E=15,000 MPa, is up to 3 % at positive and negative temperatures. It has been found that there is a change in the nature of the distribution of temperature stresses across the height of the beam at the contact surface of the reinforced concrete beam and methyl methacrylate reinforcement. The value of temperature stresses in the beam with methyl methacrylate reinforcement and exposed to the positive and negative ambient temperatures increases by three times. It was established that the value of temperature stresses is affected by a difference in the temperature of the reinforced concrete beam and reinforcement, as well as the physical and mechanical parameters of the investigated structural materials of the beam and the structural reinforcement with methyl methacrylate

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…However, works [7][8][9] did not assess the thermoelastic state of composite beams strengthened by methyl methacrylate compositions.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Studies [10][11][12][13][14][15], similarly to works [7][8][9], reported no results in assessing the thermoelastic state of a bridge slab reinforced with methyl methacrylate compositions.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Procedure for determining the thermoelastic state of a reinforced concrete bridge beam strengthened with methyl methacrylate

Kovalchuk

Sobolevska

Onyshchenko

et al. 2021

EEJET

View full text Add to dashboard Cite

show abstract

“…The nonlinear temperature distributions of the concrete structures depend on the geographical situation, orientation, climatic conditions, and thermal properties of the structures. 1,2 There are vast territory and complex terrain in China, forming complex and diverse climate characteristics of monsoon climate. The temperature distributions of concrete box girders caused by solar radiation considering regional influences deserve to be researched furtherly.…”

Section: Introductionmentioning

confidence: 99%

Time-varying non-uniform temperature distributions in concrete box girders caused by solar radiation in various regions in China

Sheng

Shi

Zheng

et al. 2022

Advances in Mechanical Engineering

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Non-uniform temperature distributions of concrete box girders are induced by solar radiation depending on the structural shapes and shadows cast on them. Using a real-time shadow-selection algorithm and finite element method, the thermodynamic analysis of concrete box girders is carried out to simulate their time-varying temperature distributions. The theoretical results of the finite element model (FEM) are verified by measured data. Based on this, a series of FEMs of concrete box girders are established considering regional influences, and the temperature gradients of concrete box girders in different climatic zones in China are studied. The most unfavorable temperature gradient of concrete box girders in China is obtained, and it is important for design and not only for health monitoring. Moreover, comparing the temperature gradient modes in the specifications of various countries, the temperature gradient of concrete box girders in the China Highway Bridges Design Code is conservative for structural design. Furthermore, the influences on structural temperature distributions of varying environmental factors induced by regional influences are explored, including atmospheric transparency coefficient (ATC) and solar radiation absorptivity (SRA).

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Full-scale experimental study on temperature field of large-diameter CFST arch bridges under strong radiation and large daily ambient temperature difference

Zhou¹,

Zhou

Feng

et al. 2022

J Civil Struct Health Monit

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A three-dimensional method for the simulation of temperature fields induced by solar radiation

Cited by 10 publications

References 19 publications

Procedure for determining the thermoelastic state of a reinforced concrete bridge beam strengthened with methyl methacrylate

Procedure for determining the thermoelastic state of a reinforced concrete bridge beam strengthened with methyl methacrylate

Time-varying non-uniform temperature distributions in concrete box girders caused by solar radiation in various regions in China

Full-scale experimental study on temperature field of large-diameter CFST arch bridges under strong radiation and large daily ambient temperature difference

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