Seismic Performance Comparison of Precast Bridge Columns with Different Shear Span-to-Depth Ratios and Connection Designs via Quasi-Static Cyclic Test

Wang, Zhiqiang; Zhang, Penghui; Zhang, Jiyan; Li, Tiantian; Yan, Xiangqiao; Qu, Hongya

doi:10.1061/(asce)be.1943-5592.0001904

Cited by 5 publications

(1 citation statement)

References 15 publications

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“…As a result, it is not advisable to utilize this type of connection in high-intensity areas. Wang et al [18] conducted quasi-static cyclic tests on assembled piers. The results indicated that incorporating shear keys or altering the bond material contributed to enhancing the structural integrity.…”

Section: Introductionmentioning

confidence: 99%

Seismic behavior of assembled concrete bridge piers with hybrid joint connections

Zhang,

Zheng,

Zhong

et al. 2024

Preprint

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Investigating the seismic behavior of assembled concrete bridge piers is crucial in the design process due to the complex stress distribution in the connecting components. To demonstrate the seismic behavior of assembled concrete piers with hybrid joint connections, three bridge piers were designed with a scaling ratio of 1:8 and then tested under low cyclic loading conditions. The tests involved varying shapes of steel tube shear keys as parameters. The study involved examining failure modes and crack development, as well as analyzing the hysteretic performance, deformation capacity, energy dissipation, and stiffness degradation of the specimens. Furthermore, a finite element model was developed using ABAQUS, and the validity of the modeling approach suggested in this study was confirmed through experimental tests. The results indicate that the assembled piers exhibit reduced concrete damage at the joints. The enhanced strength of the joints is attributed to the incorporation of steel tube shear keys. The circular steel tube connection key integrated into the assembled bridge pier offers superior bearing capacity, energy dissipation, and stiffness degradation compared to the cross-shaped steel tube connection key. The presence of the built-in circular steel tube shear key in the assembled bridge pier suggests that it complies with the seismic structural measures, consistent with the design principle of "strong joint and weak member".

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Section: Introductionmentioning

confidence: 99%