A simplified analysis method for long-span suspension bridges within the deck overlay retrofitting process from asphalt to UHPC

Cao, Junhui; Shao, Xudong; Zhan, Jian; Zhang, Jiayuan; Wang, Yang

doi:10.1016/j.engstruct.2023.116122

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…15. Based on the research on corrosion of UHPC [68][69][70], the resistance capabilities of UHPC on carbon dioxide, chloride, sulfate, etc. were compared with that of HPC and conventional concrete (Fig.…”

Section: Materials Properties Of Uhpcmentioning

confidence: 99%

Application of high-performance cementitious composites in steel–concrete composite bridge deck systems: A review

Chen,

Tong,

et al. 2024

Journal of Intelligent Construction

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Keywordshigh-performance cementitious composites composite bridge deck orthotropic steel bridge deck flexural behavior crack resistanceThe orthotropic steel bridge deck (OSBD) has been widely used in recent decades, benefiting from its advantages of lightweight and easy assembly. However, the longitudinal and transversal stiffeners of OSBDs are connected to the top flange plate through dense welds, which will easily introduce fatigue cracks. Hence, the composite bridge deck (CBD) system was proposed, adding a concrete layer over a steel plate to increase the sectional stiffness of OSBDs and reduce the fatigue stress amplitude. Furthermore, some new materials with extraordinary properties such as ultra-high-performance concrete (UHPC) and engineering cementitious composites (ECC) were used to replace the normal concrete, to improve the bearing capacity and crack resistance of CBDs. In this review, four kinds of bridge deck systems with different structural types including OSBD, steel-concrete, steel-UHPC, and steel-ECC CBDs were discussed. The flexural performance of four systems under sagging and hogging moments was reviewed, and close attention was paid to the crack resistance of the CBD system. In addition, the shear connection used in the CBDs was concentrated, and the shear behavior of some connectors including studs, perforated rib (PBL), and modified clothoid (MCL) shape shear connectors was investigated. The CBD structure assembled by duplicate profile steel parts proposed recently was introduced and discussed.

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Section: Materials Properties Of Uhpcmentioning

confidence: 99%

Application of high-performance cementitious composites in steel–concrete composite bridge deck systems: A review

Chen,

Tong,

et al. 2024

Journal of Intelligent Construction

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“…Formula (19) shows that the fictitious displacements ∆ f f ic,2,3 and f f ic,1,2 are not equal to each other, which means that the tensile forces H * 1,2 and H * 2,3 are also not equal, see Formulas (17) and (18). Iterative procedures become more complex in such cases.…”

Section: Non-linear Analysis Of Upper Hord Elementsmentioning

confidence: 99%

“…An original analysis of the shape of suspension structures in assessing the stages of construction was carried out in [17]. Suspension structures also have disadvantages, mainly related to asymmetrical loading, where kinematic origin displacements occur [18][19][20]. Additionally, the modulus of elasticity of the spiral wire ropes is lower than that of structural steel, which increases their deformability [21,22].…”

Section: Introductionmentioning

confidence: 99%

Non-Linear Behaviour and Analysis of Innovative Suspension Steel Roof Structures

Juozapaitis,

Daniūnas,

Ustinovichius

2024

Buildings

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Suspension structures are one of the most effective roof load-bearing structures for medium to long spans. Their shape under symmetric loads is usually a square parabola or a curve close to it. The biggest drawback of such structures is their increased deformability under asymmetric loads. So-called rigid cables are used to solve this problem. However, the production of such rigid cables with a curvilinear shape is complicated, and their maintenance also has drawbacks due to the above-mentioned shape. To avoid these shortcomings, straight-line suspension structures have been used. This paper proposes a new form of combined suspension roof structures consisting of main load-bearing straight suspension elements supported by cable struts. For the main suspension elements, the bending stiffness is accepted, taking into account the operational requirements of the structure. This article analyses the behaviour of such a combined suspension structural system in symmetric conditions with an innovative approach. The arrangements of this system are discussed. The calculation of the forces and displacements of this structure and its elements is presented, taking into account the geometrical nonlinear behaviour. The distribution of the forces in the rigid elements and node displacements of the structure are discussed. The proposed new form of a combined cable-supported roof structure was shown to be more effective in terms of weight than the standard parabolic-shaped suspension structure.

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Influence of fibers on tensile behavior of ultra-high performance concrete: a review

Wang,

Qiao,

Sun

et al. 2024

Construction and Building Materials

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A simplified analysis method for long-span suspension bridges within the deck overlay retrofitting process from asphalt to UHPC

Cited by 3 publications

References 20 publications

Application of high-performance cementitious composites in steel–concrete composite bridge deck systems: A review

Application of high-performance cementitious composites in steel–concrete composite bridge deck systems: A review

Non-Linear Behaviour and Analysis of Innovative Suspension Steel Roof Structures

Influence of fibers on tensile behavior of ultra-high performance concrete: a review

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