Optimization of composite dowels shape in steel-concrete composite floor

Lacki, P.; Kasza, Przemysław; Adamus, K.

doi:10.1016/j.compstruct.2019.110902

Cited by 14 publications

(8 citation statements)

References 28 publications

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“…The connectors are divided into rigid, flexible and combined. In addition to traditional connectors, such as cylindrical flexible connectors, dowel strips connectors have become widespread [13][14][15][16][17][18]. Their special feature is the reduced labor intensity on the construction site, as they can be welded on the I-beam shelf at the factory or obtained by cutting the part of the T-beam.…”

Section: Development Of Shear Connectorsmentioning

confidence: 99%

Trends in the development of composite reinforced concrete structures of pedestrian aboveground overpasses

et al. 2021

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Pedestrian bridges are an important part of the urban infrastructure that ensures the safety and comfort of pedestrians. They have a number of distinctive features compared to road bridges. Also, the pedestrian load itself has a significant dynamic component, which can lead to the occurrence of resonant phenomena. Composite reinforced concrete bridges are widely used among the road bridges. This is due to the possibility of including the roadway structure in the act, which increases the load-bearing capacity and reliability of the structure. The same advantages are typical for pedestrian aboveground overpasses. However, pedestrian bridges have a number of features that affect the operation of the composite reinforced concrete structure. It is well-known that the difference between bending structures in civil construction and bending structures in bridge and road construction is the ratio of the rigidness of the concrete and steel parts. The load on pedestrian aboveground overpasses is similar to the temporary load in civil buildings, adjusted for a large dynamic component. But at the same time, the spans of pedestrian aboveground overpasses are similar to the spans of road bridges. In this article, the prospects for the development of composite reinforced concrete structures of pedestrian overpasses are reviewed.

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Section: Development Of Shear Connectorsmentioning

confidence: 99%

Trends in the development of composite reinforced concrete structures of pedestrian aboveground overpasses

et al. 2021

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“…Therefore, they can also be used on heavily loaded industrial or warehouse ceilings [2]. As presented in [19], the main advantage of the "composite dowel" compared to head studs is a higher load capacity and adequate resistance to deformation even in high-strength concrete, thanks to which, according to EN 1994-1-1 [20], they can be classified as ductile shear connectors.…”

Section: Introductionmentioning

confidence: 99%

Study of Innovative Connector for Steel–Concrete Composite Structures

Derlatka,

Lacki,

Kania

et al. 2024

Applied Sciences

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The paper presents an analysis of the innovative connector for manufacturing a steel–concrete composite beam. The connector consists of a corrugated metal sheet in the shape of a dovetail and shot nails. The nails are shot through the sheet fold into the flange of the steel I-section. Experimental studies of push-out tests were carried out. The conducted tests proved that the proposed solution can be applied as the fastener for steel–concrete composite beams for the construction of ceilings in utility public buildings with small beam’s span. Considering the criteria presented in the Eurocode 4 standard and the results of the experiments, it was proven that all analyzed types of fasteners are ductile. The connector made of sheet with a thickness of 1.00 mm and 2 nails is characterized by a breaking load of 30.83 kN. The load-bearing capacity of the fastener can be adjusted by changing the corrugated sheet thickness and changing the number of nails shot in the single fold of the sheet.

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“…Finite element (FE) method is also used to analyze the failure mechanism of shear connectors 18 . Lacki optimized the shape of composite dowel shear connector used in a composite structure 19 . A parametric study of steel–concrete composite beam with composite dowel connectors was done by Derlatka and the best solution for composite dowel beam was selected from seven variants.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the bearing capacity of PZ shape composite dowel shear connectors with elliptical holes

Huang

Jun-long

Kong

et al. 2022

Sci Rep

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The push-out test was carried out in order to study the shear performance of perfobond ribs (PBL) and puzzle (PZ) shape composite dowel shear connectors which are used in corrugated steel–concrete composite bridge decks. By considering the influencing factors of transversal reinforcement, elliptical holes and bonding friction forces, eight specimens were designed and prepared. The load–slip curves were obtained, and the static mechanical properties, including bearing capacity, slip, shear stiffness, and ductility factor, were analyzed. The formula of bearing capacity and load–slip curve were proposed. The results showed a clear deformation of the transversal reinforcement of both the two types of shear connectors. The dominating failure mode of both the shear connectors was the double plane shearing of the concrete dowel. The load–slip curves of the two types of shear connectors followed the same trend. The PZ shape composite dowel performed better in ultimate bearing capacity, ductility, and shear stiffness than the PBL shear connector. Elliptical holes in a PZ shape composite dowel significantly increased the ultimate bearing capacity. The shear stiffness increased with transversal reinforcement and reduced with elliptical holes. For PBL shear connectors, the strain change in the C1 area near the loading point was most apparent. While, the A1 and B1 areas were stress concentration locations for PZ shape composite dowel shear connectors. The two formulas were in good agreement with the test results.

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Optimization of composite dowels shape in steel-concrete composite floor

Cited by 14 publications

References 28 publications

Trends in the development of composite reinforced concrete structures of pedestrian aboveground overpasses

Trends in the development of composite reinforced concrete structures of pedestrian aboveground overpasses

Study of Innovative Connector for Steel–Concrete Composite Structures

Experimental study on the bearing capacity of PZ shape composite dowel shear connectors with elliptical holes

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