Flexural response of skew-curved concrete box-girder bridges

Gupta, Tanmay; Kumar, Manoj

doi:10.1016/j.engstruct.2018.02.063

Cited by 23 publications

(12 citation statements)

References 28 publications

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“…The bridge model was discretized by using four noded shell elements. Gupta and Kumar [34] analysed the Han-Jiang bridge of span length 27.4 m, located at Shayang located in Wuhan, China. The skew-curved concrete box-girder bridge was analysed under Indian specification using CSiBridge software [35].…”

Section: Introductionmentioning

confidence: 99%

Box-Girder Bridges - Modelling and Analysis

2022

IJEM

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The box-girder bridge has become very popular lately due to its serviceability, stability, and structural efficiency. The study of such a bridge requires analytical, experimental, or numerical methods. The structural behavior of the box-girder bridge is very complex and is quite cumbersome to be investigated by conventional methods. This paper presents a modelling process for the analysis of simply supported reinforced concrete (RC) box-girder bridges (straight, skew, curve, and skew-curved) using the finite element method under Indian loading conditions. This modelling process is developed on the basis of the Codal provisions of Indian Road Congress (IRC) 6:2017 and IRC 21:2000, and its implementation is quite simple as it avoids the cumbersome calculations and requires less time. Different values of the span, span-depth ratio, and the number of cells are considered to suit the requirements, and limiting criteria for stresses and deflection are checked. The static and free vibration analyses are carried out, and the results are compared to control the applicability of the proposed modelling process. The present modelling process is applied to analyse the RC box-girder bridges up to 50 m spans, and no erection procedure is included. However, one may follow the proposed modelling procedure for any box-girder bridge for its analysis.

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Section: Introductionmentioning

confidence: 99%

Box-Girder Bridges - Modelling and Analysis

2022

IJEM

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“…Although the early analysis of the ultimate load-carrying capacity of curved girders can be dated back to the 1960s [ 4 , 6 , 7 , 8 , 9 , 10 , 11 ], regarding the analysis methods, some scholars studied the theory of curved bridges, including pure torsion theory, limiting torsion theory, and bridge type theory, which built the groundwork for the study of CPCBG bridges [ 12 , 13 ]. Subsequently, with the improvement of computing technology, which can realize the operation of a higher-order matrix on the computer, some researchers have used the curve finite band method and finite element method to analyze the deflection deformation and structural force of the prestressed curve bridge [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of The Working Performance of Large Curvature Prestressed Concrete Box Girder Bridges

et al. 2022

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Based on numerical shape functions and the structural stressing state theory, the mechanical properties of the curved prestressed concrete box girder (CPCBG) bridge model under different loading cases are presented. First, the generalized strain energy density (GSED) obtained from the measured strain data is used to represent the stressing state pattern of the structure; then, the stressing state of the concrete section is analyzed by plotting the strain and stress fields of the bridge model. The stressing state pattern and strain fields of the CPCBG are shown to reveal its mechanical properties. In addition, the measured concrete strain data are interpolated by the non-sample point interpolation (NPI) method. The strain and stress fields of the bridge model have been plotted to analyze the stressing state of the concrete cross-section. The internal forces in the concrete sections are calculated by using interpolated strains. Finally, the torsional effects are simulated by measuring the displacements to show the torsional behavior of the cross-section. The analysis and comparison of the internal force and strain fields reveal the common and different mechanical properties of the bridge model. The results of the analysis of the curved bridge model provide a reference for the future rational design of bridge projects.

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“…The bridge is isolated with passive polynomial friction pendulum isolators (PFPIs) [13]. The skew-curved box-girder bridge's behavior is analysed under dead load and Class 70R tracked vehicular load using the finite element method [14]. The reactions of the skew-curved box-girder bridge are determined using finite element based CsiBridge software [15].…”

Section: Introductionmentioning

confidence: 99%

Free Vibration Analysis of RC Box-Girder Bridges Using FEM

Agarwal¹,

Pal²,

Mehta³

2022

Sound&Vibration

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The free vibration analysis of simply supported box-girder bridges is carried out using the finite element method. The fundamental frequency is determined in straight, skew, curved and skew-curved box-girder bridges. It is important to analyse the combined effect of skewness and curvature because skew-curved box-girder bridge behaviour cannot be predicted by simply adding the individual effects of skewness and curvature. At first, an existing model is considered to validate the present approach. A convergence study is carried out to decide the mesh size in the finite element method. An exhaustive parametric study is conducted to determine the fundamental frequency of box-girder bridges with varying skew angle, curve angle, span, span-depth ratio and cell number. The skew angle is varied from 0°to 60°, curve angle is varied from 0°to 60°, span is changed from 25 to 50 m, span-depth ratio is varied from 10 to 16, and single cell & double cell are used in the present study. A total of 420 bridge models are used for parametric study in the investigation. Mode shapes of the skew-curved bridge are also presented. The fundamental frequency of the skew-curved box-girder bridge is found to be more than the straight bridge, so, the skew-curved box-girder bridge is preferable. The present study may be useful in the design of box-girder bridges.

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Flexural response of skew-curved concrete box-girder bridges

Cited by 23 publications

References 28 publications

Box-Girder Bridges - Modelling and Analysis

Box-Girder Bridges - Modelling and Analysis

Analysis of The Working Performance of Large Curvature Prestressed Concrete Box Girder Bridges

Free Vibration Analysis of RC Box-Girder Bridges Using FEM

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