Distortion analysis of horizontally curved trapezoidal box girder bridges

Campo-Rumoroso, Iván; Ramos-Gutiérrez, Óscar Ramón; Cambronero-Barrientos, Francisco

doi:10.1016/j.engstruct.2023.115798

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Zhang et al [ 32 ] derived analytical solutions for the distortion effects in the elastic stage of single-box structures, employing the energy variational principle. Campo et al [ 33 ] established the governing differential equation using the principle of virtual works and presented a procedure to calculate the distortion effect in horizontally curved trapezoidal box girder bridges. While the aforementioned literature primarily focuses on warping normal stresses, it is important to also consider the distortion warping shear stresses to ensure the safety and serviceability of a thin-walled box girder.…”

Section: Introductionmentioning

confidence: 99%

Distortion Effect on the UHPC Box Girder with Vertical Webs: Theoretical Analysis and Case Study

Wang,

Wu,

Zhang

et al. 2024

Materials

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Distortion deformation usually imposes a potential threat to bridge safety. In order to comprehensively understand the distortion effect on thin-walled ultra-high performance concrete (UHPC) box girders, an innovative approach encompassing the governing distortion differential equation is introduced in this study based on the general definition of distortion angle within the cross-section plane. The analytical results obtained from the proposed method are in accordance with those obtained from the energy method, and exhibit favorable agreement with experimental findings documented in the existing literature. Furthermore, a finite element model is developed on the ANSYS 2021 R1 software platform with the employment of a Shell 63 element. Numerical outcomes are also in good agreement with the experimental data, affirming the validity and reliability of the findings. In addition, parameter analysis results indicate that the distortion angle remains approximately constant at a location approximately 1/10 of the span from the mid-span cross-section of the box girder, regardless of changes in the span-to-depth ratio. Increasing the web thickness yields a notable reduction in the distortion effects, and decreasing the wall thickness can effectively mitigate the distortion-induced transverse bending moment. Compared with normal-strength concrete box girders, UHPC box girders can reduce the distortion angle within the span range, which is beneficial for maintaining the overall stability of the box girders. The outcomes obtained from this study yield engineers an enhanced understanding of distortion effect on the UHPC girder performance.

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Section: Introductionmentioning

confidence: 99%

Distortion Effect on the UHPC Box Girder with Vertical Webs: Theoretical Analysis and Case Study

Wang,

Wu,

Zhang

et al. 2024

Materials

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“…Therefore, it is necessary to conduct research on the mechanical performance of the girder. Many researchers have conducted relevant research on the stress characteristics of box girders, including experimental studies and theoretical analyses [5][6][7][8][9]. Kim et al [10] conducted three-dimensional finite element analyses and determined the ultimate strength of composite box girders in bending and torsion.…”

Section: Introductionmentioning

confidence: 99%

Experimental Test and Finite Element Analysis on a Concrete Box Girder of a Cable-Stayed Bridge with W-Shaped Prestressed Concrete Diagonal Braces

He,

Wang,

et al. 2024

Buildings

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This paper presents an experimental study on the box girder of a low-tower cable-stayed railway bridge with a W-shaped section that consists of prestressed concrete diagonal braces. A 1:6 scale test model was designed and constructed for the experiment. The mechanical behavior of the test model was investigated under two loading conditions: a double-track train symmetrical load and a single-track train unsymmetrical load. The experimental results were validated against a finite element model. Furthermore, the torsional performance of the box girder section was analyzed and discussed.

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