Mingzhuwan Bridge: The Largest Span Three-Main-Truss Steel Arch Bridge

Shangguan, Bing; Hu, Huiyong; Ning, Pinghua; Su, Qingtian

doi:10.1080/10168664.2021.1991253

Cited by 2 publications

(2 citation statements)

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“…The steel truss bridge has a large span and is lightweight with a short construction period. It is usually one of the preferred choices in the design of long-span bridges [1][2][3]. The deck is an important component in the structural design of long-span steel truss bridges for high-speed railways.…”

Section: Introductionmentioning

confidence: 99%

“…Previously, three types of non-linear plate girder elements were proposed in the literature to study the behavior of steel truss composite bridges and their deformation characteristics under two scenarios with combinations of either longitudinal girders or transverse girders with a concrete steel deck [27]: 1 plate girder elements that consider the full composite action of the plates and girders (including double-girder and single-girder plate girder elements); 2 plate girder elements with a single girder that only consider the same vertical deflection of the plate and the girder; and 3 a transition zone for plate girder elements (including double-girder and single-girder elements). The displacement pattern of the girders is established according to the deformation coordination between the plates and the girders.…”

Section: Introductionmentioning

confidence: 99%

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Study of a Layered Plate Girder Element of Composite Materials and Its Applications

2023

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This study aims to provide an effective method to study the behavior of a steel–concrete composite deck. First, the structural characteristics of the composite deck and the challenges arising in the computational analysis of the structure using general software are described. Then, an LPGE element that combines the plate element and the girder element into one element to conveniently construct the model with high computation efficiency is proposed. Based on the principle of multivariate field function, the constraint matrix for the plate and girder and the stiffness matrix for the LPGE are derived. The LPGE method is used to study the behavior of the composite deck through the computation of a steel truss arch bridge. The computation results are compared with the results obtained in ANSYS and the test results to verify the correctness and effectiveness of the LPGE method. The results of the paper offer references for the analysis of steel–concrete composite decks.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of a Layered Plate Girder Element of Composite Materials and Its Applications

2023

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Numerical Study on the Mechanical Performance of a Flexible Arch Composite Bridge with Steel Truss Beams over Its Entire Lifespan

Sun,

Zheng,

et al. 2024

Sustainability

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Steel truss–arch composite bridge systems are widely used in bridge engineering to provide sufficient space for double lanes. However, a lack of research exists on their mechanical performance throughout their lifespan, resulting in uncertainties regarding bearing capacity and the risk of bridge failure. This paper conducts a numerical study of the structural mechanical performance of a flexible arch composite bridge with steel truss beams throughout its lifespan to determine the critical components and their mechanical behavior. Critical vehicle loads are used to assess the bridge’s mechanical performance. The results show that the mechanical performance of the bridge changes significantly when the temporary piers and the bridge deck pavement are removed, substantially influencing the effects of the vehicle loads on the service life. The compressive axial force of the diagonal bar significantly increases to 33,101 kN near the supports during the two construction stages, and the axial force in the upper chord of the midspan increases by 4.1 times under a critical load. Moreover, the suspender tensions and maximum vertical displacement are probably larger than the limit of this bridge system in the service stage, and this is caused by the insufficient longitudinal bending stiffness of truss beams. Therefore, monitoring and inspection of critical members are necessary during the removal of temporary piers and bridge deck paving, and an appropriate design in steel truss beams is required to improve the life cycle assessment of this bridge system.

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Mingzhuwan Bridge: The Largest Span Three-Main-Truss Steel Arch Bridge

Cited by 2 publications

References 1 publication

Study of a Layered Plate Girder Element of Composite Materials and Its Applications

Study of a Layered Plate Girder Element of Composite Materials and Its Applications

Numerical Study on the Mechanical Performance of a Flexible Arch Composite Bridge with Steel Truss Beams over Its Entire Lifespan

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