Stability Analysis of Box-Girder Cable-Stayed Bridges

Shu, Hung-Shan; Wang, Yang-Cheng

doi:10.1061/(asce)1084-0702(2001)6:1(63)

Cited by 28 publications

(7 citation statements)

References 20 publications

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“…Cable-stayed bridge longitudinal girders are prone to buckling due to high axial forces caused by the cable tensions [6]. Composite deck in a cable-stayed bridge prevents buckling of the steel longitudinal girders.…”

Section: Composite Deck Cable-stayed Bridgementioning

confidence: 99%

Analysis Of Steel-Rcc Composite Deck Bridge

Sharma¹

2021

TURCOMAT

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: In the literature, provisions for analysis and design of steel-RCC composite deck type truss and cable-stayed bridges do not exist. A composite deck type truss bridge model is analyzed using STAAD Pro V8i software and a model with the same dimensions is tested in the laboratory. The experimental test results are used to validate the STAAD analysis results. Bottom chord strain and mid-span deflection of the composite bridge model as found from the STAAD analysis and the laboratory experiment closely tally with each other. This validates the standard STAAD analysis results. However, in the top chord member, due to shrinkage cracks in the deck slab concrete, the experimentally recorded strain is higher by about 100% than the STAAD analysis result. Shear force in studs is considerably large near supports and joints as compared to the midsection. Therefore, the design of shear studs may be carried out based on the shear forces in the studs found from the STAAD analysis. Thus it is recommended that STAAD or any other standard finite element analysis software can be used for analysis and design of the composite bridges.

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Section: Composite Deck Cable-stayed Bridgementioning

confidence: 99%

Analysis Of Steel-Rcc Composite Deck Bridge

Sharma¹

2021

TURCOMAT

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“…Stability problem is one of the key problems that need to be solved in the design and construction of bridge structures under pressure [4]. e research on the stability of structures such as arch bridges, which are obviously dominated by compression, has a long history.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Stability of Long‐Span PC Cable‐Stayed Bridge during the Construction Periods

Zeng

Wang

Shi

et al. 2022

Advances in Civil Engineering

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With the increasing span of cable-stayed bridges, the towers are getting higher and higher, and the stiffening beams are becoming more and more slender. The increase in span causes the axial pressure of the beams and towers to increase rapidly, and the sag effect of the cables, geometric nonlinearity, and material nonlinear effects are significantly increased. The influence of these disadvantages greatly reduces the stability of the cable-stayed bridge, and the stability of the cable-stayed bridge becomes prominent. In this paper, the finite element method is used to analyze the first kind of stability problem and the second kind of stability problem of cable-stayed bridges. On this basis, a large-span prestressed concrete (PC) cable-stayed bridge is taken as an example to analyze and compare the two types of stability problems of the bridge during the construction phase and the operation phase. Besides, the model experimental study on the stability of the bridge during the maximum double cantilever construction period was carried out. The theoretical values and the model test results are compared to verify the correctness of the calculation method and design theory, which may provide a reference for the design, construction, and scientific research of cable-stayed bridges.

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“…Studies on the stability of cable-stayed bridges have been carried out by many researchers. Shu and Wang investigated the stability characteristics of box-girder cable-stayed bridges by three-dimensional finite element methods taking into account geometric nonlinearity and many design parameters, such as the main span length, the cable arrangement, and the type of pylons [4]. Yoo et al proposed a modified eigenvalue analysis by introducing the concept of a fictitious axial force to obtain buckling lengths of steel girder members in cable-stayed bridges, which could avoid the problem of generating excessively large buckling lengths in some girder members having small axial forces [5].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Stability Analysis of a Composite Girder Cable-Stayed Bridge with Three Pylons during Construction

Deng

Liu

2015

Mathematical Problems in Engineering

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Based on the nonlinear stability analysis method, the 3D nonlinear finite element model of a composite girder cable-stayed bridge with three pylons is established to research the effect of factors including geometric nonlinearity, material nonlinearity, static wind load, and unbalanced construction load on the structural stability during construction. Besides, the structural nonlinear stability in different construction schemes and the determination of temporary pier position are also studied. The nonlinear stability safety factors are calculated to demonstrate the rationality and safety of construction schemes. The results show that the nonlinear stability safety factors of this bridge during construction meet the design requirement and the minimum value occurs in the maximum double cantilever stage. Besides, the nonlinear stability of the structure in the side of edge-pylon meets the design requirement in the two construction schemes. Furthermore, the temporary pier can improve the structure stability, effectively, and the actual position is reasonable. In addition, the local buckling of steel girder occurs earlier than overall instability under load in some cable tension stages. Finally, static wind load and the unbalanced construction load should be considered in the stability analysis for the adverse impact.

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Stability Analysis of Box-Girder Cable-Stayed Bridges

Cited by 28 publications

References 20 publications

Analysis Of Steel-Rcc Composite Deck Bridge

Analysis Of Steel-Rcc Composite Deck Bridge

Experimental Study on Stability of Long‐Span PC Cable‐Stayed Bridge during the Construction Periods

Nonlinear Stability Analysis of a Composite Girder Cable-Stayed Bridge with Three Pylons during Construction

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