Shear behavior of a novel bearing-shear connector for prefabricated concrete decks

Zou, Yang; Qin, Fengjiang; Zhou, Jianting; Zheng, Zhichao; Huang, Zulin; Zhang, Zhongya

doi:10.1016/j.conbuildmat.2020.121090

Cited by 28 publications

(11 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fifteen push-out specimen tests were performed by Zou [ 25 ] to study the effect of the geometry of B-SCs on their shear behaviour. Figure 2 and Figure 3 show the test setup and geometric dimensions of the specimens manufactured in accordance with Eurocode 4 [ 31 ], respectively.…”

Section: Summary Of Push-out Testsmentioning

confidence: 99%

“…In Section 4.3 , the failure modes of the push-out specimens were primarily proved as splitting and shear failures of the concrete slab and shear plate, respectively. In addition, push-out tests have demonstrated that shear deformation of the shear plate provides the majority of the shear resistance of the B-SCs [ 25 ]. Therefore, an analysis of the failure mechanisms of concrete slabs and shear plates is necessary.…”

Section: Verification Of the Numerical Modelmentioning

confidence: 99%

“…The bearing-shear connectors (B-SCs), composed of pressure-bearing plates and shear plates, have a simple structural design, as illustrated in Figure 1 [ 25 ]. Push-out and beam tests are often performed to investigate the shear behaviour of connectors.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams

et al. 2023

Self Cite

View full text Add to dashboard Cite

The bearing-shear connector (B-SC) is a newly developed connector that exhibits excellent shear behaviour and is easy to process. However, research on the application of B-SCs as substitutes for grouped studs in prefabricated steel–concrete composite beams is rare, and systematically studying their shear behaviour is necessary. Thus, a refined numerical model was developed to study the shear behaviour of the B-SCs. The numerical model, validated by push-out tests, was conducted to analyse the stress of the B-SCs and concrete slab during loading and to explore the failure mechanism of B-SCs. Then, a parametric study was performed to identify the key factors influencing the shear behaviour of the B-SCs. The concrete strength, and the thickness and the tensile strength of the shear plate were found to significantly influence the shear behaviour of B-SCs. According to the experiments and numerical analysis, calculation formulae for the ultimate shear resistance and slip modulus were proposed.

show abstract

Section: Summary Of Push-out Testsmentioning

confidence: 99%

Section: Verification Of the Numerical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…The following values of elastic shear stiffness are considered for floor‐to‐floor connectors k s‐f‐f (kN/m): k s‐f‐f = 10, almost no connectors; k s‐f‐f = 3500, order of magnitude for elastic stiffness of Bolt connectors 25 ; k s‐f‐f = 10,000, order of magnitude for elastic stiffness of Plate Bar connectors (PB‐130) 26 ; k s‐f‐f = 35,000, order of magnitude for elastic stiffness of H‐Plate Bar connectors 25 ; k s‐f‐f = 10 5 , order of magnitude for elastic stiffness of Bent Wing connectors 27 ; k s‐f‐f = 10 6 , order of magnitude for elastic stiffness of Novel Bearing‐Shear connectors 28 ; k s‐f‐f = 10 10 , order of magnitude for rigid connectors, such as welded connectors. …”

Section: Floor‐to‐floor Connectorsmentioning

confidence: 99%

Diaphragm effectiveness of multistory precast parking structures with floor‐to‐floor mechanical connectors

Wei

2022

Structural Concrete

View full text Add to dashboard Cite

Multistory parking structures are a promising exploration avenue to address the acute need for parking spaces, and their floors are often joined with mechanical connectors to form a floor system. The properties of floor‐to‐floor connectors directly affect the seismic behavior of parking structures. Thus, the effectiveness of diaphragm action with several different typical floor‐to‐floor connectors was investigated and the natural frequencies and seismic performances of the parking structures were obtained. The results show that the mechanical characteristics of connectors in precast elements have a crucial influence on the diaphragm effectiveness of large‐span concrete structures with precast double‐tees under strong seismic action.

show abstract

“…Assembled steel–concrete composite bridges are well suited for the construction demands of industrialized and standardized production, offering advantages such as high construction safety, easy construction control and minimal environmental disruption, making them a promising bridge structural system [ 1 , 2 , 3 , 4 , 5 ]. Joints, as crucial elements for connecting precast bridge decks, greatly influence on-site assembly efficiency, bridge load-bearing performance and deck durability [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Shear Performance of Epoxy Joints in a Precast Bridge Deck Considering Constraint Effects

Zhang

Wang

et al. 2023

Polymers

View full text Add to dashboard Cite

The joint form plays a vital role in the rapid assembly of precast bridge decks for steel–concrete composite bridges. Existing research primarily focuses on studying the shear performance of joints through direct shear tests, which is insufficient to fully reflect the mechanical behavior of joints under the constraint of prefabricated bridge deck panels during actual vehicular traffic. Considering situations such as vehicle loads and external forces acting on precast bridge decks, this study investigates the shear performance of epoxy joints under constraint through an improved shear test. The influence of constraint force, shear key details and interface defects on the shear performance of epoxy joints is investigated. The results reveal that the shear test method employed in this study can realistically reflect the shear performance of epoxy joints in precast bridge decks. Both active and passive constrained epoxy joint specimens exhibited no interface cracks, and their failure modes were identified as shear failure between mid-span supports. Compared with passive constraint, the shear-bearing capacity of epoxy joint specimens under active constraint was increased by 86.1~130.6%. Among the epoxy joint specimens with depth–height ratios of 15/110, 25/110, 35/110 and 45/110, the joint with a depth of 35 mm demonstrated the highest shear strength. Furthermore, the shear performance of epoxy joints significantly deteriorated when the interface defects exceeded 30%, resulting in the failure mode transforming from shear failure to interface failure.

show abstract

Shear behavior of a novel bearing-shear connector for prefabricated concrete decks

Cited by 28 publications

References 53 publications

Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams

Shear Behaviour and Calculation Methods of Bearing-Shear Connectors for Prefabricated Steel–Concrete Composite Beams

Diaphragm effectiveness of multistory precast parking structures with floor‐to‐floor mechanical connectors

Shear Performance of Epoxy Joints in a Precast Bridge Deck Considering Constraint Effects

Contact Info

Product

Resources

About