Flexural behaviour of composite steel–concrete beams utilising blind bolt shear connectors

Pathirana, Sameera Wijesiri; Uy, Brian; Mirza, Olivia; Zhu, Xinqun

doi:10.1016/j.engstruct.2016.01.057

Cited by 94 publications

(17 citation statements)

References 13 publications

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“…Besides behaviour of blind bolts in solid slabs under static loading tested in push-out and beam tests, the investigation on blind bolts also covered dynamic behaviour [18,19], timedependent behaviour [20] and behaviour under combined shear and tension [48]. Implementation of blind bolts was suggested in both demountable composite beams [25,26] and in bridge rehabilitation work [21,26], the only difference being in the mounting process: in the latter case, holes were cored in a concrete slab and drilled in a steel flange from the top side of the specimen, then bolts were fixed and holes in the concrete slab were filled with grout. Nevertheless, a different mounting process did not significantly affect bolt behaviour.…”

Section: Figure 9 Comparison Of Shear Connector Behaviourmentioning

confidence: 99%

Demountable composite steel-concrete floors: A state-of-the-art review

Jakovljević¹,

Spremić²,

Marković³

2021

JCE

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In keeping with current demands for sustainable development in all segments of the industry, numerous research in the field of steel-concrete composite structures has been focused on developing demountable shear connectors. In the past years, various demountable shear connectors have been suggested, with various mechanisms for transferring shear force between a steel profile and a concrete or composite slab. In this paper, a state of the art on the topic is given, and experimental and numerical research results of push-out and beam tests are summarized.

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Section: Figure 9 Comparison Of Shear Connector Behaviourmentioning

confidence: 99%

Demountable composite steel-concrete floors: A state-of-the-art review

Jakovljević¹,

Spremić²,

Marković³

2021

JCE

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“…In the contact region between the concrete slab and the steel box girder top flanges, tangential contact of the “Hard contact—Penalty” type was considered. The coefficient friction between steel and concrete materials, used to represents the tangential contact, was considered equal to 0.4 (Wijesiri Pathirana et al, 2016). Figure 8 shows the numerical model interactions.…”

Section: Numerical Modelmentioning

confidence: 99%

“…Moreover, the interaction between the headed shear studs and the concrete slab was also modeled by the “embedded constrain” command. This allows to efficiently simulate the action of the connector against shearing forces inside the concrete (Wijesiri Pathirana et al, 2016).…”

Section: Numerical Modelmentioning

confidence: 99%

Numerical assessment of effective width in steel-concrete composite box girder bridges

Nicoletti

Rossi

Souza

et al. 2020

Advances in Structural Engineering

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The present paper aims to determine numerically in the Abaqus® software the parameters that have the greatest influence on the effective width of steel-concrete composite box girder bridges. In the technical standards and in the literature, there is no specific recommendation for calculating the effective width in steel-concrete composite box girder bridge. As an alternative, the existing recommendations for steel-concrete composite I-girders are adopted. Therefore, in the absence of standards recommendations for steel-concrete composite box girder bridges, there is a need for an investigation into the distribution of stresses at the steel-concrete interface, because if the effective width was admitted incorrectly, may result in costly or even unsafe solutions. For this purpose, the effective numerical width of 160 models of steel-concrete composite box girder bridges was determined, in which the study variables were the configuration of the transversal section, the slab height, the span length and the elements arrangement in the cross section. After analyzing the results, it was proposed a recommendation to determine effective width of steel-concrete composite box girder bridges.

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“…Similarly, Dallam [10] and Marshall et al [23] investigated the behavior of highstrength grip bolts as composite shear connectors, however, an attempt to demount the shear connectors was not undertaken in any of above mentioned researches. An application of blind bolts as shear connector in composite beams was investigated by Pathirana et al [36] and Mirza et al [24]. Full scale beam tests have shown that blind bolts exhibit comparable behavior to welded studs connectors in terms of stiffness, strength and ductility [36].…”

Section: Friction Grip Boltsmentioning

confidence: 99%

“…An application of blind bolts as shear connector in composite beams was investigated by Pathirana et al [36] and Mirza et al [24]. Full scale beam tests have shown that blind bolts exhibit comparable behavior to welded studs connectors in terms of stiffness, strength and ductility [36]. However, according to findings by Mirza et al [24] blind bolts exhibit relatively brittle behavior compared to welded connectors.…”

Section: Friction Grip Boltsmentioning

confidence: 99%

Towards a demountable composite slab floor system

2019

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Composite slab consisting of in-situ casted reinforced concrete on profiled sheeting, which is connected to steel beams by shear connectors, is a common structural flooring system in office buildings and car parks. The headed welded studs are inexpensive and rather easy to use in-situ because they can be welded to the steel beam through the metal sheeting. A permanent link is created between the composite slab and steel beams leading to rather time-consuming and expensive deconstruction process. Various types of bolted shear connections, recently investigated by various researchers in Europe, Australia, USA, provide a demountable alternative for the flooring system. This paper describes the experimental study using a bolted shear connector consisting of an embedded bolt/coupler and external bolt, originally developed for a prefabricated concrete deck. A full-scale composite beam was tested under working loads up to 6.25kN/m 2 in a 4-point bending. In addition to bolted shear connectors a timber joist is embedded in the composite slab over the web of the steel beam. After the first life cycle, the timber joist provides the cut edge of the slab. The experiment is used to model behaviour in the first life cycle. The composite slab was then cut, demounted, re-assembled and tested again in the second life cycle. The load was applied up to 6.25kN/m 2 and finally to the failure. Multiple arrangements of shear connectors were investigated to analyse performance of "a modified composite slab". Experience gained on the experiments of testing the composite beam in the first and the second life cycle is accompanied by FE analysis.

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Flexural behaviour of composite steel–concrete beams utilising blind bolt shear connectors

Cited by 94 publications

References 13 publications

Demountable composite steel-concrete floors: A state-of-the-art review

Demountable composite steel-concrete floors: A state-of-the-art review

Numerical assessment of effective width in steel-concrete composite box girder bridges

Towards a demountable composite slab floor system

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