Push-off tests on pin-connected shear studs with composite steel–concrete beams

Tahir, Mahmood Md.; Shek, Poi Ngian; Tan, Cher Siang

doi:10.1016/j.conbuildmat.2009.04.008

Cited by 25 publications

(11 citation statements)

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“…At present, there are two main methods used to test the interface bond slip in a CFST. Push-off tests, with the load acting on the whole section, can be used to simulate the actual change in a structure while only the ultimate bond strength can be tested by this method [16]. The Push out test is adopted by most studies because it can measure the bond strength in the whole loading process [17][18].…”

Section: Introductionmentioning

confidence: 99%

Interface Bond Behaviour Between Circular Steel Tube and Lightweight Aggregate Concrete

2018

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To ascertain the nature of the interface bond behaviour of lightweight aggregate concrete-filled steel tubes (LACFSTs), 27 specimens were tested by push-out loading and four of them were subjected to repeated push-out loading. Influence factors such as lightweight aggregate concrete strength, concrete vibration and curing method, steel surface conditions, slenderness ratio, and diameter-to-thickness ratio were considered. The bond slip process and strength were analysed and a formula was proposed to calculate the bond strength of the LACFSTs. The results show that the bond-slip curve can take one of two forms: one with an obvious peak, the other without, and each one manifests three different trends after reaching ultimate load. According to the test results, the bond strength is independent of the lightweight aggregate concrete strength. Higher diameter-to-thickness ratios cause a reduction in the bond strength. A good quality of concrete vibration and curing can improve the bond strength. The bond strength after the first of the repeated push-out tests is the largest. In the same push-out direction, the bond strength decreases as the push-out time increases, and the load-slip curves are similar among all samples tested. The comparisons between test results and calculations show that the proposed formula has a good accuracy.

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Section: Introductionmentioning

confidence: 99%

Interface Bond Behaviour Between Circular Steel Tube and Lightweight Aggregate Concrete

2018

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“…They concluded that sufficient ductility of the shear connectors was achieved. Tahir, et al (2009) also developed a pinnedconnected shear stud system in composite beam using a hot rolled steel section which was subjected to push-out test. They concluded that the strength and ductility of the pinned-connected stud system could be improved by increasing the penetration depth of the pins and the material of the base plate used in which the studs were installed.…”

Section: Mustaphamentioning

confidence: 99%

Bolted Shear Connectors Performance in Self-Compacting Concrete Integrated with Cold-Formed Steel Section

Lawan

Tahir

Mirza

2016

Lat. Am. j. solids struct.

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In conventional composite construction involving hot-rolled steel section, the composite action is usually achieved by using conventional headed shear studs connectors. However, use of headed studs is not practical for cold-formed steel (CFS) section due to its very thin form that is difficult to weld. A suitable bolt and nut type shear connector was proposed; experimental tests were carried out to evaluate its performance. This study also investigated the use of Self-Compacting Concrete (SCC) integrated with CFS by means of bolted shear connectors to develop composite action. Therefore, the objective of this paper was to investigate the performance of bolted shear connectors in SCC integrated with CFS section as composite beam system. Eighteen push-out test specimens comprising of M12, M14 and M16 sized bolted shear connector of grade 8.8 with longitudinal spacings of 150 mm, 250 mm and 300 mm centers were fabricated, cast and tested until failure. The experimental results showed that all bolted shear connectors possessed a good shear resistance capacity. Not much difference in strength capacity of specimens with M14 and M16 bolted shear connectors was found, perhaps due to CFS failure. Varying the size and longitudinal spacing of the bolted shear connectors revealed that the connectors' strength capacity changed slightly between M14 and M16 bolts specimens but, significantly for M12 bolt specimens.

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“…Figura 2.26 -Conector não soldado (Tahir et al, 2009) Tahir et al ( 2009) ensaiou um conector semelhante ao stud bolt fixado por pinos e fabricado pela primeira vez pela empresa Pneutek, em Hudson, E.U.A, em 1971. Sua velocidade de fixação é de 5 a 10 vezes maior que a do stud bolt tradicional.…”

Section: Conectores Não Soldadosunclassified

Estudo numérico e experimental de conectores de cisalhamento feitos de vergalhão CA-50 para uso em estrutura mista aço-concreto

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Push-off tests on pin-connected shear studs with composite steel–concrete beams

Cited by 25 publications

References 1 publication

Interface Bond Behaviour Between Circular Steel Tube and Lightweight Aggregate Concrete

Interface Bond Behaviour Between Circular Steel Tube and Lightweight Aggregate Concrete

Bolted Shear Connectors Performance in Self-Compacting Concrete Integrated with Cold-Formed Steel Section

Estudo numérico e experimental de conectores de cisalhamento feitos de vergalhão CA-50 para uso em estrutura mista aço-concreto

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