Test of shear transfer enhancement in symmetric cold-formed steel–concrete composite beams

Irwan, J. M.; Hanizah, A. H.; Ibrahim, Azmi

doi:10.1016/j.jcsr.2009.07.008

Cited by 50 publications

(42 citation statements)

References 17 publications

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“…The properties of CFS and welded wire fabric reinforcement are identical with properties from the push-out test programme results [3]. Concrete cubes were tested to determine the compressive a b cube strength, f cu .…”

Section: Materials Propertiesmentioning

confidence: 97%

“…As per the discussion in Irwan et al [3,[10][11][12], the augmentation in the ultimate moment capacity of CFS-concrete composite beam with BTTST relied on the increase in shear transfer enhancement resistance, contributed by the bearing area of BTTST. The increment on size and angle of BTTST produce a greater bearing area which prevents the concrete from slipping.…”

Section: Dimensions Of Bttst (Size and Angle)mentioning

confidence: 99%

“…To increase the efficiency of the shear connection, two shear transfer enhancement types were employed. The types are bent-up tabs formed in the flanges suggested by Lakkavalli and Liu (LYLB) [7] and a new proposed type called bent-up triangular tabs (BTTST) [3]. The welded wire fabric reinforcement consists of 8 mm diameter bars with spacings 100 mm × 100 mm and steel grade 460.…”

Section: Cfs-concrete Composite Beam Test Specimensmentioning

confidence: 99%

“…The investigation reported by Irwan et al [3] involved tests on 68 symmetric CFS-concrete composite push-out test specimens without enhancement (control specimens), Lakkavalli and Liu bent-up (LYLB) and BTTST. The push-out test specimens were tested to evaluate the strength and behaviour of BTTST.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Large-scale test of symmetric cold-formed steel (CFS)–concrete composite beams with BTTST enhancement

Juki

Hanizah

Azmi

et al. 2011

Journal of Constructional Steel Research

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Section: Materials Propertiesmentioning

confidence: 97%

Section: Dimensions Of Bttst (Size and Angle)mentioning

confidence: 99%

Section: Cfs-concrete Composite Beam Test Specimensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Large-scale test of symmetric cold-formed steel (CFS)–concrete composite beams with BTTST enhancement

Juki

Hanizah

Azmi

et al. 2011

Journal of Constructional Steel Research

Self Cite

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“…Better shear transfer can be accomplished using principles well-developed in connection design for CFS [3]. Another means for ensuring shear transfer in steel-concrete composites included cutting and bending the steel deck to produce shear tabs [4,5].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Shear Transfer in Composite Deck with Mechanical Fasteners

McComb¹,

Tehrani²

2018

Preprint

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Reinforced concrete construction and steel construction are two of the most common contemporary construction methods. Both methods make use of composite decks as floor systems and diaphragms. During the design of composite decks, the interaction between the steel deck and concrete slab is typically disregarded when calculating the strength of the composite diaphragm due to lack of complete shear transfer, as existing practices such as stamping are not effective to provide substantial composite action. This conservative assumption essentially results in non-efficient use of material. This paper presents a method for ensuring shear transfer through the use of conventional sheet metal screws, driven through the corrugated steel deck and embedded in the fresh concrete. This method is proposed for use in the field between formed steel beams. Both experimental and analytical studies support an increase in strength with the addition of embedded fasteners. Further, experimental results indicate an additional increase in strength with the addition of synthetic reinforcing fibers. The increase in strength with the addition of the fasteners is on the order of 100%. When fasteners are already in use, the addition of synthetic reinforcing fibers can increase strength on Preprint submitted to Engineering Structures January 27, 2015 the order of 10%. The ultimate deflection of enhanced deck is comparable to deck tested without fasteners, but the initial stiffness of enhanced deck is much higher.

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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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Test of shear transfer enhancement in symmetric cold-formed steel–concrete composite beams

Cited by 50 publications

References 17 publications

Large-scale test of symmetric cold-formed steel (CFS)–concrete composite beams with BTTST enhancement

Large-scale test of symmetric cold-formed steel (CFS)–concrete composite beams with BTTST enhancement

Enhancement of Shear Transfer in Composite Deck with Mechanical Fasteners

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

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