Experimental investigation on hybrid GFRP-concrete decks with T-shaped perforated ribs subjected to negative moment

Zuo, Yize; Liu, Yuqing; He, Jun

doi:10.1016/j.conbuildmat.2017.10.032

Cited by 20 publications

(5 citation statements)

References 31 publications

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“…In the meantime, a perforated plate connection is widely used and preferred in steel-concrete composite structures [10,11]. The combination of sand-coated surface and perforated plate has been tested in composite slabs by the authors [12]. It has been found that the flexural resistance of slabs with sand-coated GFRP perforated connectors (SCGPC) was much larger than that of slab without surface treatment.…”

Section: Introductionmentioning

confidence: 99%

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

et al. 2019

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In order to evaluate the shear performance of sand-coated glass fiber-reinforced polymer (GFRP) perforated connectors (SCGPC) embedded in concrete, 8 pull-out tests were conducted. Finite element (FE) analysis considering GFRP failure and cohesion between GFRP and concrete of SCGPC were conducted for parametric analysis. Effects of surface treatment, hole’s radius, embedment length, and multi holes were examined. The test and theoretical analysis revealed that the strength of SCGPC is considerably larger than GFRP Perforated Connector (GPC). The stiffness of SCGPC is determined by the adhesion between concrete and GFRP. When GFRP plate’s thickness is less than the critical thickness, the embedment length plays a major role in the strength of SCGPC. When embedment length is less than the effective bond length, the shear strength of SCGPC is governed by both the adhesion and GPC’s shear capacity; otherwise, the strength of SCGPC is governed by the adhesion strength. Furthermore, an empirical equation was suggested to predict the shear strength of SCGPC. The equation involves the failure mechanism of both bond and GPC and deals the strength of SCGPC into two ranges according to the embedment length. Good agreement was achieved between the strength prediction by the suggested equation and the parametric analysis result.

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Section: Introductionmentioning

confidence: 99%

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

et al. 2019

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“…Most recently, a novel hybrid GFRP-concrete deck system with composite T-shaped perforated rib connectors was developed by Zuo et al (Figure 13) [39,40]. ere were two other connection mechanisms except for the sandcoated GFRP plate surface: one was shear and uplift effects of GFRP T-shaped ribs, which was similar to headed studs and the other was formed by the penetrating bars through the holes in GFRP T-shaped perforated ribs.…”

Section: Experimental Testing and Validationmentioning

confidence: 99%

“…Besides, the inconvenience of installation should be considered. (6) FRP perforated connectors [29,30,39,40,54] (Figure 21): the action mechanism is similar to perfobond connectors in steel-concrete composite beams, which rely on the concrete wedge to resist the shear force. ey usually have better pullout resist performance in the vertical direction of the junction surface.…”

Section: Classification Of Connectionmentioning

confidence: 99%

A State‐of‐the‐Art Review on Hybrid GFRP‐Concrete Bridge Deck Systems

Zuo

Cao

Zhou

et al. 2021

Advances in Materials Science and Engineering

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The state-of-the-art review of hybrid GFRP-concrete systems for bridge decks is presented in this study. Previous research on the experimental work, analytical modeling, and field application on hybrid GFRP-concrete deck systems are presented, along with a variety of deck systems are discussed. Then, seven typical types of connection technology between FRP and concrete are introduced and compared. Besides, the current progress on the performance of shear connections via beam tests, pushout tests, and pullout tests are probed, respectively. Finally, general conclusions are made, identifying the need for future research.

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“…Among them, the most widely used shear connectors are mainly perfobond rib (PBL) connectors [ 3 ] and stud shear connectors [ 4 ]. Compared with stud shear connectors, the perfobond rib (PBL) connector has received much attention due to its superior mechanical properties and long service life [ 5 , 6 , 7 ]. As for bridge engineering [ 8 , 9 ], Yang et al [ 10 ] investigated the mechanical properties of the PBL connector group; Zhang et al [ 11 ] studied the fatigue damage performance of the PBL connector.…”

Section: Introductionmentioning

confidence: 99%

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

Huang

et al. 2023

Materials

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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.

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Experimental investigation on hybrid GFRP-concrete decks with T-shaped perforated ribs subjected to negative moment

Cited by 20 publications

References 31 publications

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

Shear Performance Assessment of Sand-Coated GFRP Perforated Connectors Embedded in Concrete

A State‐of‐the‐Art Review on Hybrid GFRP‐Concrete Bridge Deck Systems

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

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