Analysis of influence of solar radiation on the deflected mode of steel-reinforced concrete span

Podlesnykh, Igor; Gridnev, Sergey; Barchenkova, Nadezhda

doi:10.15862/12sats218

Cited by 4 publications

(2 citation statements)

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“…The work [9] is devoted to the analysis of the temperature distribution in the layers of the pavement of the steel-reinforced concrete span structure and its influence on the formation of longitudinal cracks in the asphalt concrete pavement in the area above the main beams. In studies [10][11][12], the nature of the distribution of the temperature field along the height of the crosssection was studied, the influence of solar radiation on the stress-strain state and the safety of the asphalt concrete pavement was noted.The article [13] defines the temperature limits at which there are discrepancies in the results of calculating the SSS based on field measurements of the span under the influence of solar radiation with the results of calculations, in accordance with the recommendations of regulatory documents. In works [14,15], studies were carried out during the cold season and a significant effect of temperature effects on the distribution of stresses in the elements of the bridge structure was noted.…”

Section: Introductionmentioning

confidence: 99%

Comparative statement analysis of span structures with a reinforced concrete and orthotropic plate under the exposure of solar radiation

et al. 2021

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Carried out a comparative analysis especially the exposure to solar radiation on the stress-strain state (SSS) of span structures with orthotropic slabs of reinforced concrete. Determine the character limit of the temperature distribution in the elements of the two types of spans according to the results of field measurements. Conducted calculation of Stress-Strain State on specific cases of solar radiation with the use of the developed finite element (FE) models of two types of span structures in the platform LIRA SAPR. The results of SSS features obtained for a steel-reinforced concrete superstructure and a metal superstructure with an orthotropic slab are compared. It is shown that the uneven daytime change in the temperature field under the influence of solar radiation has a significantly different nature of effect on the stress-strain state of elements of metal and steel-reinforced concrete span structures.

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Section: Introductionmentioning

confidence: 99%

Comparative statement analysis of span structures with a reinforced concrete and orthotropic plate under the exposure of solar radiation

et al. 2021

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“…In [8], the authors studied the temperature distribution along the height of the cross section of the steel-concrete composite span structure and studied its impact on the durability of asphalt concrete road surfacing.…”

Section: Introductionmentioning

confidence: 99%

Estimating the Influence of Solar Radiation at Different Seasons on the Mode of Deformation of a Span Structure With an Ortrotropic Plate

Gridnev

Podlesnykh

Rezunov³

et al. 2020

AFST

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The article studies the effect of solar radiation at different seasons on the mode of deformation (MD) of a span structure with an orthotropic plate. The temperature fields of the elements of the structure were measured during daylight hours at different times of year at various air temperatures and sun positions. Cases were identified in which it is necessary to clarify the temperature values of the asphalt concrete road surfacing and the main beams obtained using a non-contact pyrometer, and by measuring the temperature with a contact thermometer. During the year the elements of the span are in a wide temperature range. Using the developed finite element model of the span, taking into account the layers of road surfacing, the MD calculations were performed for each case of exposure to solar radiation according to the corrected results of field measurements. An analysis of the results of numerical studies allows us to conclude that diurnal and seasonal temperature fluctuations create significant additional stresses in the span, which should be taken into account when calculating the MD of spans of road bridges.

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Experimental assessment of solar radiation effect on the stress-strain state of a span with an orthotropic slab

Gridnev

Podlesnykh

Barchenkova

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The article is devoted to the experimental assessment of the solar radiation effect on the stress-strain state of a span with an orthotropic slab. Preliminary, comprehensive instrumental measurements of the road surface temperature distribution and the span elements were carried out at different times of the year. A detailed picture of the temperature distribution over the cross-section height was determined at different air temperatures and the Sun positions. To assess the solar radiation effect, instrumental measurements of deflections and deformations of the span‘s main beams under the influence of solar radiation were carried out and the nature of the change in the stress-strain state of the span during the day was determined. The measurements were carried out using the deflection meters and strain gauges mounted on the main beams that experience uneven heating throughout the day. Using the developed and previously tested finite element model, the calculated values of the span bearing elements‘ stress-strain state parameters for each case of exposure to solar radiation have been determined, taking into account the experimentally obtained temperatures. Comparison of the calculation results obtained on the basis of field measurements and calculation in the program of the finite element method has been carried out. The most unfavorable cases of the solar radiation effect on the main beams‘ displacement have been revealed.

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Analysis of influence of solar radiation on the deflected mode of steel-reinforced concrete span

Cited by 4 publications

References 0 publications

Comparative statement analysis of span structures with a reinforced concrete and orthotropic plate under the exposure of solar radiation

Comparative statement analysis of span structures with a reinforced concrete and orthotropic plate under the exposure of solar radiation

Estimating the Influence of Solar Radiation at Different Seasons on the Mode of Deformation of a Span Structure With an Ortrotropic Plate

Experimental assessment of solar radiation effect on the stress-strain state of a span with an orthotropic slab

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