Mechanical behavior of a novel steel–concrete joint in concrete-composited hybrid continuous bridges

Xu, Chen; Zhang, Lepeng; Su, Qingtian; Abbas, Sheraz

doi:10.1016/j.istruc.2021.12.030

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…Yao et al [13] proposed a new type of steel-concrete joint for long-span railway hybrid beam cable-stayed bridges, conducting model tests and studying the influence of different structural parameters on the mechanical properties of the joint using the finite element method. Xu et al [14] established a full-scale model of a new type of joint, performed static bending tests, and analyzed the influence of material damage plasticity on the mechanical properties of the new joint based on the finite element method. Zhou et al [15] conducted model tests and a finite element analysis on the joints in a railway bridge, studying the force transmission mechanism and the influence of structural design parameters on the mechanical properties of the joint.…”

Section: Introductionmentioning

confidence: 99%

Study on Structural Parameter Sensitivity and the Force Transmission Mechanism of Steel–Concrete Joints in Hybrid Beam Bridges

Jia,

Yuan,

et al. 2024

Buildings

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In this study, a refined model of the Shanghai Damaogang Bridge’s (hybrid beam type) box deck joints is established. The correctness of the model is verified by construction monitoring. For the front and back bearing plates, the force performance of the joint members under the most unfavorable loads is investigated, and the force transmission mechanism is analyzed. The influence of the bearing plate thickness and the joints’ stiffness on the stress distribution of the joint members, the internal force of the joints, and the force-transfer efficiency is investigated by the method of controlling variables, and the optimal structural parameters of the nodes are also studied. The results show that, within the proximity of the back bearing plate, the thickness of the back bearing plate affects stress distribution in the joint. The increased stiffness of the welding studs makes the range of shear force along the bridge direction of the top and bottom welding studs larger, and the longitudinal distribution of welding stud shear force is more uneven. The concrete structure bears a higher proportion of the internal force in the joint compared to the steel structure.

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Section: Introductionmentioning

confidence: 99%