Mechanical Behavior of Composite Girder with Perfobond Shear Connector under Hogging Moment

He, Jiang; Liu, Yu Qing; Chen, Zhao; Chen, Ai Rong; Yoda, Tetsuya

doi:10.4028/scientific5/amr.446-449.1046

Cited by 1 publication

(1 citation statement)

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“…The steel-concrete structure is well accepted in modern bridges for both concrete and steel advantages. Notwithstanding, PBL shear connectors have already made an important contribution to steel-concrete composite bridges because of transferring longitudinal shear between concrete and steel (Zhang et al, 2016; Xiao et al, 2010; Oguejiofor and Hosain, 1997; He et al, 2012). However, it is worth noting that with the diversity of transportation on roads as needed, occasional traffic accidents are also frequent in pace with the growth of tankers loading hazardous chemicals.…”

Section: Introductionmentioning

confidence: 99%

Push-Out experiments on bearing capacity of perfobond leiste shear connectors after hydrochloric acid corrosion

Qiao

Wang

Yang

et al. 2023

Advances in Structural Engineering

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The paper study the shear bearing performance and failure mechanism of perfobond leiste (PBL) shear connectors after hydrochloric acid corrosion. Seven groups of specimens with PBL shear connectors were designed, these PBL shear connectors suffered from hydrochloric acid corrosion time of 0 h, 1 h, 4 h, 12 h, 24 h, 48 h and 72 h. Herein, loading process, shear bearing capacity, load-slip curve, and failure mode were obtained by the push-out experiment, and then refined the finite element model (FEM) was established. Following the parameter analysis of 14 experiment specimens and 77 finite element models, the force mechanism of PBL shear connectors after hydrochloric acid corrosion were analyzed. With the extension of the corrosion time of PBL shear connectors, the shear capacity, deformation capacity, and slip decrease gradually. Among them, the finite element parameter analysis of PBL shear connectors demonstrates that their shear bearing capacity has the ability to be modified by raising the concrete strength, the diameter of penetrated steel bar, the diameter of steel plate holes, and changing the end bearing mode. On condition that the concrete strength is raised from C30 to C60, the shear capacity is reduced by 5.19%. When the diameter of penetrated steel bar has mushroomed from 12 mm to 25 mm, the shear capacity declines by 9.59%. Meanwhile, the shear bearing capacity of the end bearing is about 2 times of the non-end bearing. Once the diameter of steel plate holes adds 35 mm to 65 mm, the shear capacity just decreases by 2.48%. Finally, the reliability of PBL shear connectors are analyzed by the exit experiment data and the shear bearing capacity formula of PBL shear connectors. The research results can offer a reference for the shear bearing capacity of PBL shear connectors after hydrochloric acid corrosion.

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