Study on Bearing Capacity Influence Factors of the PBL Shear Connector

Shi, Qingxuan; Yang, Fengzhu; Guo, Jiangran

doi:10.1088/1755-1315/560/1/012038

Cited by 5 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Experiment models all complied with 《the Code for Composite》 Shi et al (2020) and referred to 《the Code for Design of Highway Steel-Concrete Composite Girder Bridges》 (JTG/T D64-01-2015) in China. The push-out experiment, containing 14 specimens, designed seven groups specimens of PBL shear connectors with different corrosion times, numbered SP-0-1, SP-0-2, SP-1-1, SP-1-2, SP-4-1, SP-4-2, SP-12-1, SP-12-2, SP-24-1, SP-24-2, SP-48-1, SP-48-2, SP-72-1, SP-72-2.…”

Section: Experimental Programmentioning

confidence: 99%

“…Therefore, for PBL shear connectors, Yu demonstrated that concrete grade and penetrated steel bars played a significant role in the elastic bearing capacity and ultimate bearing capacity, respectively (Yu et al, 2012). In the approaches of Shi et al (2020), and Oguejiofor and Hosain (1994), they assessed that the concrete strength, reinforcement diameter, and the number of holes marked affected the stress of PBL connectors, but hole diameter had little effect. Furthermore, the spacing and diameter of reinforcement affected the load and slip distribution, as did concrete strength.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

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.

show abstract

Section: Experimental Programmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…Hu et al analyzed the influence of various factors on the shear capacity of PBL connectors through push-out tests and, on this basis, proposed a formula for calculating the shear capacity of PBL connectors [ 20 , 21 ]. Through numerical simulation and parameter analysis, Shi et al found that the strength of concrete, the diameter of the steel bar and the number of openings significantly affect the force of PBL connectors; however, the diameter of the openings has little effect on it [ 22 ]. Akinori et al studied the influence of the connector’s internal components on the shear performance of the connector through push-out tests and numerical simulation [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Study on Shear Resistance Property of a New PBL Connector with Steel–Rubber Tenon

Huang

et al. 2023

Materials

View full text Add to dashboard Cite

In order to improve the shear resistance and structural ductility of the perfobond rib (PBL) connector, a new PBL connector with steel–rubber tenon is proposed in this study, which aims to increase the shear load capacity of the connector while improving the ductility of the connector. First, models of new PBLs are established based on the validated finite element method, and their mechanical properties are compared with other shear connectors. The results show that the stiffness and shear load capacity of the proposed connector can be effectively improved when the steel ring is added, where the shear stiffness can be reduced, and the deformation capacity of the specimen can be improved when the rubber ring is added. When a steel ring with a thickness of 5 mm and a rubber ring with a thickness of 5 mm are involved, the shear load capacity of the connector with steel–rubber tenon is increased by 13.7%, and the shear stiffness is reduced by 37.3% compared to the conventional concrete tenon connector, while the ductility is increased by 75.1% compared to the connector with steel ring tenon. Subsequently, as for the connectors with steel–rubber tenon, the effects of the thickness of the steel ring, the thickness of the rubber ring, the diameter of perforated rebar, the strength of concrete and the strength of perforated steel plate are analyzed based on the finite element model of a PBL. The results show that an increase in the thickness of the steel ring, the diameter of the perforated rebar and the strength of the concrete will cause an increase in the shear stiffness and shear load capacity of the connector; however, an increase in the thickness of the rubber ring can cause a decrease in the shear stiffness and shear load capacity of the connector, while a change in the strength of perforated steel plate has little effect on the shear stiffness and shear load-carrying capacity. Finally, based on the finite element parametric analysis results and the damage mechanism of the proposed connector, a calculation equation applicable to the PBL connector with steel–rubber tenon is presented to predict the shear load capacity of the connector.

show abstract

“…Shear keys have made a great contribution to the development of steel-concrete composite structures by transferring shear forces from the longitudinal direction in the structure, resisting the slippage of concrete and steel plates, and lifting steel plates [1]. With the development of the bridge, shear connection keys have also been developed accordingly, and the more widely used shear keys in engineering can be divided into rigid shear keys and flexible shear keys.…”

Section: Introductionmentioning

confidence: 99%

Study on Shear Resistance and Structural Performance of Corrugated Steel–Concrete Composite Deck

Guo,

He,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

This study looks into a new composite bridge deck structure that employs a corrugated steel plate as the base. The goal is to address the shortcomings of traditional deck-bearing capacity, stiffness, and stress performance. Specifically, this study investigates the shear performance and slip characteristics of this structure. To achieve this, the study analyzes the shear behavior and slip tendencies of the composite bridge deck. The study focuses on the role of shear studs and PBL (Perfobond Leiste) perforated steel plates as essential components for shear connections. The shear performance of the composite deck is analyzed based on the structure of shear connection keys such as shear studs and PBL perforated steel plates. The advantages of composite decks in terms of stiffness, self-weight, load-bearing capacity, shear resistance, slip resistance, etc., are discussed to provide a theoretical reference for practical engineering applications. The shear resistance of shear stud shear keys is investigated through shear push-out experiments, and the shear resistance of shear studs is investigated through finite element simulations based on the ABAQUS 2020 finite element software. The results showed that the shear load capacity of the shear studs increased with the increase in the height-to-diameter ratio for different diameters of the shear studs, and the range of increases was from 2% to 23%. However, when the diameter of the shear stud exceeded 22 mm, the ultimate shear capacity of the shear stud increased with the increase in the height-to-diameter ratio, and the magnitude of the increase slowed down. For the actual design of the composite deck, it is recommended to maintain a shear stud height-to-diameter ratio within the range of 9 to 12. When using a composite deck with a PBL open-hole steel plate, the maximum longitudinal slip at the plate end and within the span is only 0.28 mm and 0.0158 mm, respectively. These values are 31% and 36% lower than those of the composite deck with a peg shear key. Additionally, the vertical peeling within the span of the PBL open-hole steel plate is merely 0.46 mm, showing a 21% reduction compared to that of the shear studs. It can be seen that the PBL perforated steel plates are more effective than the shear studs in resisting slip and peel.

show abstract

Study on Bearing Capacity Influence Factors of the PBL Shear Connector

Cited by 5 publications

References 2 publications

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

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

Study on Shear Resistance Property of a New PBL Connector with Steel–Rubber Tenon

Study on Shear Resistance and Structural Performance of Corrugated Steel–Concrete Composite Deck

Contact Info

Product

Resources

About