Structural form and experimental research of truss arch bridge with multi-point elastic constraints

Qiu, Chen; Xie, Xu; Pang, Mulin; Song, Huilan

doi:10.1177/13694332211020384

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…For a long span, the bridge needs to have supports in the middle, called a continuous beam bridge. The performance of the bridge is increased by providing carbon cables, and strips, prestressed concrete, composite box girder, and fiberglass reinforced foam concrete [6][7][8][9][10][11] Arch bridge use curve structures to provide more resistance to bending forces. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch to the supports at each end [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on Performance of Beam and Arch Bridge Subjected to Uniformly Distributed Load

Rehumaan

2022

Int. J. Archit. Eng. Technol.

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In this paper, an attempt has been made to study the behavior of beam and arch bridges subjected to static uniformly distributed loads. The target audience of this research paper is Architecture students because they would like to visualize the structural concepts for better understanding with minimal calculation. For this reason, a static load test was conducted on three types of beam bridges and on three types of arch bridges. The performance of the arch bridge is studied by changing the type of beam, and the results are compared with the beam bridge. Based on the test results, it is found that the performance of glued beam bridges is recommended for less span than arch bridges.

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Section: Introductionmentioning

confidence: 99%

Comparative Study on Performance of Beam and Arch Bridge Subjected to Uniformly Distributed Load

Rehumaan

2022

Int. J. Archit. Eng. Technol.

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Deformation Performance Analysis of a Truss Structure Based on the Deformation Decomposition Method

2022

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Trusses are among the basic components of large-span bridges and large-space structures. A method is proposed to conduct a comprehensive deformation analysis of a truss in terms of the basic rigid body displacements and the tension and compression deformation based on complete mathematical orthogonality and mechanical equilibrium. The correctness of the proposed method is verified by comparison with a traditional strain analysis. Furthermore, a relative deformation decomposition of the mode shape is proposed to analyse in detail its relative displacement and deformation. The correctness and superiority of the proposed method are verified by comparison with the modal mass participation coefficient method and the animation from observation method. Additionally, the relative deformation decomposition of a plane truss structure is realized under any load conditions based on the superposition of mode shapes. The quantitative analysis of the basic deformation performance of a plane truss structure can also be conducted by countable mode shapes, which do not involve load conditions. Finally, the number of mode shapes that must be considered differs when using the maximum displacement and the tension and compression deformation analysis indicators.

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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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Structural form and experimental research of truss arch bridge with multi-point elastic constraints

Cited by 3 publications

References 27 publications

Comparative Study on Performance of Beam and Arch Bridge Subjected to Uniformly Distributed Load

Comparative Study on Performance of Beam and Arch Bridge Subjected to Uniformly Distributed Load

Deformation Performance Analysis of a Truss Structure Based on the Deformation Decomposition Method

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

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