Push-out tests on three innovative shear connectors for composite cold-formed steel concrete beams

Bamaga, S. O.; Tahir, Mahmood Md.; Tan, Cher Siang; Shek, Poi Ngian; Aghlara, Reza

doi:10.1016/j.conbuildmat.2019.06.223

Cited by 38 publications

(26 citation statements)

References 19 publications

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“…According to Lakkavalli & Liu [32], it can be concluded that increase the thickness of the cold-formed C-sections will significantly provide 43.5% higher in ultimate capacity of the composite CFS beam-concrete slab. The design of the composite connections could be enhanced significantly by depending on the ductile behaviour of the shear connectors and being satisfied with the requirement of EN1994-1-1 standard [18]. Alhajri [19] and Bamaga [18] confirmed that CFS sections and concrete slabs could act compositely perfect if the criteria of the shear connections meet the composite requirements in terms of type, shape, spacing and configuration and in line with the thickness of the CFS sections.…”

Section: Composite Cold-formed Steel Beam-to-slab Jointsmentioning

confidence: 95%

“…The design of the composite connections could be enhanced significantly by depending on the ductile behaviour of the shear connectors and being satisfied with the requirement of EN1994-1-1 standard [18]. Alhajri [19] and Bamaga [18] confirmed that CFS sections and concrete slabs could act compositely perfect if the criteria of the shear connections meet the composite requirements in terms of type, shape, spacing and configuration and in line with the thickness of the CFS sections. To investigate the ductility and strength capacity of the new shear connector for the composite connection, Bamaga [18] has introduced two types of shear connectors which are 'SC1' and 'SC2' shear connectors to run on the push test specimens using DARTEC jack machine with maximum capacity of 1000 kN and tested according to the EN1994-1-1 standard.…”

Section: Composite Cold-formed Steel Beam-to-slab Jointsmentioning

confidence: 95%

“…By general, Tan [27] considered that all specimens as ductile connections since the ductility of the specimens are more than 30 mRad, and classified as partial strength connection due to the rotational stiffness improved significantly from 511 to 1671 kNm/rad. The termed of partial strength connection as indicated in the Eurocode 3 can be fulfilled if and only if the connection having a moment resistance of joint less than the moment resistance of the connected beam [1,12,18,[27][28].…”

Section: Cold-formed Steel Beam-to-column Jointsmentioning

confidence: 99%

“…To investigate the ductility and strength capacity of the new shear connector for the composite connection, Bamaga [18] has introduced two types of shear connectors which are 'SC1' and 'SC2' shear connectors to run on the push test specimens using DARTEC jack machine with maximum capacity of 1000 kN and tested according to the EN1994-1-1 standard. In the findings, Bamaga [18] found out that the normalized ultimate strength capacity of 'SC2' is slightly higher than 'SC1' shear connector due to the end bearing area of 'SC2' shear connector is larger compared to the 'SC1' connector.…”

Section: Composite Cold-formed Steel Beam-to-slab Jointsmentioning

confidence: 99%

“…However, there is only little works and yet lack of technical literature regarding on the composite connections of the CFS especially on the composite beam-to-column of CFS connections. In addition, some researchers [7,9,[11][12][13][14][15][16][17][18][19] have mentioned that there is still lack of general design rules for moment connections among the CFS members especially on the composite beam-to-column connections. This paper aims to collect and review on the previous research studies of the CFS connection specifically from the past two decades, since plenty of research studies have been performed and as the significance of CFS is widely concerned.…”

Section: Introductionmentioning

confidence: 99%

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Review on Composite Joints for Cold-Formed Steel Structures

et al. 2018

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Introduction of the lightweight cold-formed steel (CFS) sections to building construction has been well-established these days due to its high structural performance, corrosion resistance, ease of construction and maintenance as well as aesthetic appearance. In the early of 21th century, researchers found out that the structural performance of the CFS can be improved significantly by integrating it with other materials, for instance, concrete, to create the composite system. This is due to concrete material is excellent in compression but less effective to resist tension force. There were little works being carried out and lack of technical literature regarding on the composite connections for CFS structural frames, especially on the composite beam-to-column joints. This paper aims to collect and review on the previous researches of composite joints for CFS structures from the past two decades. The review is made in three distinctive topics i.e. CFS beam-to-column joints, composite beam-to-slab joints and composite beam-to-column joints. Most of the investigations indicated that composite joint yields higher ultimate load and moment resistance compared to the non-composite joint.

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Section: Composite Cold-formed Steel Beam-to-slab Jointsmentioning

confidence: 95%

Section: Composite Cold-formed Steel Beam-to-slab Jointsmentioning

confidence: 95%

Section: Cold-formed Steel Beam-to-column Jointsmentioning

confidence: 99%

Section: Composite Cold-formed Steel Beam-to-slab Jointsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Review on Composite Joints for Cold-Formed Steel Structures

et al. 2018

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Numerical Investigation of Shear Connection in Cold‐formed Steel‐concrete Composite Beam

et al. 2022

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Researches show that composite systems made by combining cold‐formed steel (CFS) elements and concrete can produce excellent properties compared to traditional solutions. One of the solution which employs CFS elements and concrete is the subject of research within the LWT‐FLOOR project. The LWT‐FLOOR system consists of built‐up CFS beams with corrugated web, connected by spot welds and concrete slab with an innovative shear connection. This paper presents a numerical investigation of two types of shear connections suitable for the proposed composite solution. One type of shear connection is completed using bolts which provide a direct shear connection between the flange profiles of the steel girder and the concrete slab. The second type of shear connection is achieved using a composite dowel rib connector realised through a steel beam corrugated web. In this case, the connection between the profiles of the steel beam and the concrete flange is realised indirectly, i.e., through spot welds between C profiles and corrugated web. The results of FE simulations indicate that a solution with bolts ensures higher shear, but reduces its ductility. These results provide the basis for the conduction of experimental push‐out tests of the proposed shear connection types.

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