A numerical analysis of buckle cable force of concrete arch bridge based on stress balance method

Liu, Zengwu; Zhou, Shuhua; Zou, Kairan; Qu, Yinghao

doi:10.1038/s41598-022-15755-w

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…The cross-sectional diagrams of the main arch rib at the crown and foot are shown in Figure 1b,c MIDAS/CIVIL is software for structural and spatial finite element model building. It was wildly used in bridge construction, temperature, dynamics, and mechanical performance analysis [23,24].…”

Section: Bridge Background and Finite Element Modelmentioning

confidence: 99%

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Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge

Liu

Wang

et al. 2023

Buildings

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To investigate the reasonable range of the inclination angle of arch ribs, a spatial finite element method was employed based on a concrete-filled steel tube (CFST) basket-handle through an arch bridge with a span of 360 m. A spatial finite element model was established using Midas/Civil software, which was verified with actual bridge data. The effects of different arch rib inclination angles were investigated under static loads. The structural natural frequencies, linear elastic stability coefficients, internal forces, and displacements were comprehensively considered to determine the reasonable range of the inclination angle. The results show that when the inclination angle ranges between 8° and 10°, the first, third, and sixth natural frequencies of the structure are increased. It effectively improves the lateral and torsional stiffness of the arch ribs while ensuring optimal out-of-plane stability of the arch ribs. Compared with the parallel arch, the stability is improved by 20.2%. The effects of angle variation on displacement and internal force of the arch ribs were not significant. Considering all indicators, the optimal range of the inclination angle for the arch ribs of 300-m-level highway CFST arch bridges is suggested to be 8~10°.

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Section: Bridge Background and Finite Element Modelmentioning

confidence: 99%

“…MIDAS/CIVIL is software for structural and spatial finite element model building. It was wildly used in bridge construction, temperature, dynamics, and mechanical performance analysis [23,24].…”

Section: Bridge Background and Finite Element Modelmentioning

confidence: 99%

Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge

Liu

Wang

et al. 2023

Buildings

Self Cite

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“…Considering the deviation between the real and design line shapes of the arch rib, they proposed a theoretical calculation method for a "feasible optimal solution" based on the influence matrix. Using the stress equilibrium equation considering only the tensile stress, permissible tensile stress of the arch rib, and the influence matrix method, Liu et al (2022) put forward an initial buckle cable force calculation method based on the stress equilibrium method. This improvement on the original stress equilibrium method resulted in a significant increase in work efficiency.…”

Section: Introductionmentioning

confidence: 99%

Harnessing the joint effect of approach bridges in arch bridge construction: an analytical study on thrust stiffness and elevation error mitigation

Wang,

Feng,

Yang

et al. 2024

Front. Mater.

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Achieving full equilibrium for the horizontal component force of the backstay in cable-stayed arch bridges is challenging, and the stiffness of the buckle tower has a notable influence on the overall shape of the main arch structure. Increased stiffness in the buckle tower leads to reduced construction complexity. Therefore, this study proposed a method of enhancing the longitudinal thrust stiffness of the buckle tower using the joint effect of approach bridges. A sensitivity analysis was conducted on the approach bridge–composite buckle tower structure to determine the optimal combination method, resulting in the formulation of an analytical expression for the thrust stiffness of this structure. In this study, numerical analysis was performed to explore the composition mechanism of the thrust stiffness influenced by the pier–girder connection, and we discussed the applicability of the joint effect of approach bridges during the cantilever assembly process of arch ribs. The following conclusions were obtained: 1) prior to installing the main girder of the approach bridge, when the steel buckle tower and the junction pier have already been secured, the most effective approach is to form a “T” rigid structure by firmly connecting the main girder of the approach bridge with the composite buckle tower. This configuration provides self-weight deflection and pier–girder rotation restriction effects. 2) The study presents analytical formulas for the completely rigid pier–girder connection of the approach bridge–composite buckle tower structure, partially rigid pier–girder connection, and pre-deviation. Combined with the calculation program, this can guide structural design. 3) When a large downward elevation error of the arch ribs occurs in the middle and later stages, the cable force needed to install new arch segments becomes overly large. Therefore, the joint effect of approach bridges can be utilized to substitute for a portion of the cable force, effectively reducing potential elevation errors that might arise in subsequent arch ribs in the absence of this joint effect.

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A numerical analysis of buckle cable force of concrete arch bridge based on stress balance method

Cited by 2 publications

References 16 publications

Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge

Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge

Harnessing the joint effect of approach bridges in arch bridge construction: an analytical study on thrust stiffness and elevation error mitigation

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