Technical Development of Long Span Concrete Filled Steel Tube Arch Bridges in China

Mou, Tingmin; Fan, Bikun; Zhao, Yicheng; Liang, Jian

doi:10.1007/978-3-030-29227-0_81

Cited by 3 publications

(10 citation statements)

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“…The solar time angle changes by 15 • every hour and represents true solar time. In addition, Equation ( 4) is used for calculating true solar time [2][3][4]:…”

Section: Measuring Point Layoutmentioning

confidence: 99%

“…The solar elevation angle and azimuth determine the sun's location relative to the bridge [2][3][4]. The calculation Equations ( 7) and ( 8) are:…”

Section: The Relative Position Of the Sunmentioning

confidence: 99%

“…The solar incidence angle is one factor that determines the radiant intensity of the bridge [2][3][4][5][6]. The calculation equation is:…”

Section: Solar Incidence Anglementioning

confidence: 99%

“…The atmospheric optical quality can describe the degree of attenuation of direct solar radiation by the atmosphere, which is related to factors such as atmospheric thickness, changes in atmospheric refractive index, and solar altitude angle. The expression for atmospheric optical quality [2][3][4][5][6] is shown in Equation ( 10):…”

Section: Direct Solar Radiation Intensitymentioning

confidence: 99%

“…The temperature effect has an essential impact on steel-structure bridges, as it affects not only the mechanical properties of steel-structure materials but also the shape, size, and stress distribution of the structure [4][5][6][7][8]. Under high temperature conditions, steel-structure bridges are prone to thermal deformation, which leads to structural instability or reduced bearing capacity.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Study on Sunlight Temperature Field of Steel Box Arch Ribs in Irregular Arch Bridges

Qiu,

Wu,

Ayasrah

et al. 2024

Symmetry

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Due to their excellent thermal conductivity and sensitivity to temperature changes, special attention should be paid to the influence of temperature on steel-structure bridges. The temperature effect is complex, especially for unstable steel arch bridges with complex structural forms. This paper proposes an approximate method that measures the three-dimensional temperature field of the symmetrical arch rib with the two-dimensional temperature field of multiple sections. In addition, it converts the complex radiant intensity calculation of the special-shaped steel box arch rib into the calculation of numerous planar radiant intensities. It uses the ANSYS Workbench to establish the three-dimensional transient thermal analysis finite element model of the No. 2 steel box arch rib. The influence of seasons and arch rib direction on the temperature field of steel box arch ribs and the stress and deformation of steel box arch ribs under non-linear temperature effects were analyzed. The results show that the temperature changes in different seasons significantly impact the temperature changes in the arch ribs. The change in the azimuth angle of the arch rib has a significant impact on the temperature difference between the web plates on both sides of the arch rib; under the influence of the temperature field at the most unfavorable time in summer and winter, symmetrical stress concentration occurs in the arch foot area. Furthermore, the maximum vertical displacement is 13.9 mm and 10.8 mm, respectively. Finally, when the angle is 40°, the maximum temperature difference between the web plates on both sides is 6.9 °C.

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“…The solar time angle changes by 15 • every hour and represents true solar time. In addition, Equation ( 4) is used for calculating true solar time [2][3][4]:…”

Section: Measuring Point Layoutmentioning

confidence: 99%

“…The solar elevation angle and azimuth determine the sun's location relative to the bridge [2][3][4]. The calculation Equations ( 7) and ( 8) are:…”

Section: The Relative Position Of the Sunmentioning

confidence: 99%

“…The solar incidence angle is one factor that determines the radiant intensity of the bridge [2][3][4][5][6]. The calculation equation is:…”

Section: Solar Incidence Anglementioning

confidence: 99%

Section: Direct Solar Radiation Intensitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Study on Sunlight Temperature Field of Steel Box Arch Ribs in Irregular Arch Bridges

Qiu,

Wu,

Ayasrah

et al. 2024

Symmetry

View full text Add to dashboard Cite

show abstract

Experimental study and application of manufactured sand self-compacting concrete in concrete-filled-steel-tube arch bridge: A case study

Hou

Yang

Zhang

et al. 2021

Case Studies in Construction Materials

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Research on the Flexural Performance of Steel Pipe Steel Slag Powder Ultra-High-Performance Concrete Components

Tang,

Feng,

Chang

et al. 2023

Materials

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In order to study the flexural performance of the combined structure of steel-pipe and steel slag powder ultra-high-performance concrete (UHPC), nine round steel-pipe beams filled with steel slag powder UHPC of different types were fabricated according to the orthogonal test method with the steel pipe type, coarse aggregate content, steel fiber admixture, and curing system as parameters. The broken ring morphology, deformation characteristics, deflection distribution, and flexural bearing capacity of the steel-pipe–UHPC beams were analyzed via a pure bending test and a finite element simulation. The results show that the damage morphology of the round steel-tube–UHPC beams prepared by using steel slag powder UHPC as the inner filling material was “bow damage” under the pure bending load, and the load capacity was higher. When the cross-sectional deflection reached L/30, the external load was still not reduced, and the steel-tube–steel-slag powder-UHPC beam had a better plastic deformation capacity and a later flexural bearing capacity. The type of steel tube had a significant influence on the flexural bearing capacity of the steel-tube–UHPC beam, and the larger the diameter of the steel tube section and the thicker the tube wall, the higher its flexural bearing capacity. The calculated ultimate flexural bearing capacity by the finite element software and the test results had a stable error between 5.6% and 11.2%, which indicates that the model was reasonably established. The research results can provide a reference for the application of steel pipe UHPC engineering.

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Technical Development of Long Span Concrete Filled Steel Tube Arch Bridges in China

Cited by 3 publications

References 0 publications

Study on Sunlight Temperature Field of Steel Box Arch Ribs in Irregular Arch Bridges

Study on Sunlight Temperature Field of Steel Box Arch Ribs in Irregular Arch Bridges

Experimental study and application of manufactured sand self-compacting concrete in concrete-filled-steel-tube arch bridge: A case study

Research on the Flexural Performance of Steel Pipe Steel Slag Powder Ultra-High-Performance Concrete Components

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