The effect of cross section type on the performance of different sized bolted shear connectors for composite cold-formed steel beams

Salah, Mustafa S.; Muteb, Haitham H.

doi:10.1007/s41024-022-00252-4

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…Increasing the bolt diameter often results in a higher ultimate load capacity [98,99], decreased ductility of the composite connection [98], and improved bearing capacity and stiffness [100]. The failure mechanisms are associated with the diameter of the screws and the thickness of the steel plates [101].…”

Section: Optimizing Cold-formed Steel Connections: Fastener Spacing A...mentioning

confidence: 99%

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Hussein,

Hussein

2024

Buildings

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The utilization of cold-formed steel (CFS) sections in construction has become widespread due to their favorable attributes, including their lightweight properties, high strength, recyclability, and ease of assembly. To ensure their continued safe and efficient utilization, this review provides a comprehensive investigation into the factors influencing the strength of CFS members. This analysis encompasses design codes, prediction methodologies, material properties, and various structural configurations. This review uncovers discrepancies among existing design codes, particularly noting conservative predictions in AISI and AS/NZS standards for composite and built-up sections. Additionally, the effectiveness of prediction methods such as the direct strength method and effective width method varies based on specific structural configurations and loading conditions. Furthermore, this review delves into recent advancements aimed at enhancing fire resistance, connection design, and the composite behavior of CFS structures. The influence of factors such as eccentricity, sheathing materials, and bolt spacing on structural performance is also examined. This study underscores the crucial role of accurate prediction methods and robust design standards in ensuring the structural integrity and safety of CFS constructions. Through a comparative analysis, it is revealed that AISI and AS/NZS standards exhibit conservatism in predicting nominal buckling loads compared to experimental data. Conversely, a non-linear finite element analysis demonstrates a strong correlation with laboratory tests, offering a more accurate prediction of nominal buckling capacity. Overall, this review offers comprehensive insights aimed at optimizing CFS structural design practices. By identifying key areas for future research and development, this work contributes to the ongoing advancement of safe and efficient CFS construction applications.

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Section: Optimizing Cold-formed Steel Connections: Fastener Spacing A...mentioning

confidence: 99%

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Hussein,

Hussein

2024

Buildings

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“…ABAQUS software was used to model a local launch experiment for a corrugated steel-concrete composite deck slab in an engineering example to investigate the shear re-sistance of the shear connection keys of the shear studs in the corrugated steel-concrete composite deck slab [25,26].…”

Section: Finite Element Simulation Of the Shear Resistance Of Shear S...mentioning

confidence: 99%

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

Guo,

He,

et al. 2023

Applied Sciences

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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.

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“…The difficulties of welding shear studs through PSD on site have led to the developing of a new non-welded shear connector fixed by fastening pins using a powder-actuated tool called (X-HVB) from Hilti company. Studies on these new connectors, based on pushout tests and beam tests, with and without PSD, have shown that their behavior is ductile and resembles that of the stud shear connector [4], [5].…”

Section: Introductionmentioning

confidence: 99%

The performance of composite beams with X-HVB shear connectors after being subjected to fire exposure

Hamad

Muteb

Salah³

2023

Preprint

Self Cite

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Composite construction has emerged as a highly effective methodology for construction in recent decades, typically involving hot-rolled steel beams, profiled seel decks, welded bolts, and an in-situ concrete slab reinforced with a steel mesh. This construction method offers numerous benefits, including damage resistance, good service response, and low cost. The advantages can be further enhanced through the use of X-HVB shear connectors instead of traditional weld-on bolts. X-HVB connectors offer two additional benefits: they can be used in cold rolled profiles, wet sections or rehabilitation elements, and their installation is simple and safe. The connectors are made of cold-rolled steel and come in a range of nominal heights from 40 to 140 mm. However, little previous research has focused on how the X-HVB connectors behave and affect composite beams during a fire. To investigate this, an experimental study was conducted that focused on the effect of fire exposure, the orientation of the corrugated steel plate to the steel beam, and the side of exposure to fire (from the concrete slab or steel beam). Six composite beam specimens were prepared to investigate shear strength, stiffness, and ductility, with load-deflection results obtained from the experimental work validated with proposed Digital Image Correlation (DIC) based technique results. The experimental results indicate that the capacity, stiffness and ductility of composite beams decreased upon exposure to firing, especially for those with transverse corrugated steel plates. The direction of fire exposure also had a significant impact. The DIC technique results aligned well with the test results.

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The effect of cross section type on the performance of different sized bolted shear connectors for composite cold-formed steel beams

Cited by 6 publications

References 20 publications

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

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

The performance of composite beams with X-HVB shear connectors after being subjected to fire exposure

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