Experimental study on demountable shear connectors in composite slabs with profiled decking

Rehman, Naveed ur; Lam, Dennis; Dai, Xuewu; Ashour, Ashraf

doi:10.1016/j.jcsr.2016.03.021

Cited by 71 publications

(31 citation statements)

References 10 publications

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“…Experimental studies on demountable shear connectors [39,40] have been carried out. Aninthaneni and Dhakal [41,42] proposed a demountable concrete building system that is suitable for seismic regions.…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of Guidelines and Identification of Characteristics Influencing the Deconstruction Potential of Buildings

2018

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Growing concerns regarding environmental preservation and the fact that the construction industry is one of the sectors with the highest rates of resource consumption and waste generation, have encouraged the adoption of deconstruction as an alternative to the demolition of buildings at the end of their lifecycle. However, the choice of strategies to enable deconstruction requires an in-depth knowledge of how the building’s characteristics, combined with the procedures adopted in the deconstruction process, will affect the reutilization of materials and components. In this paper, characteristics relating to design for deconstruction (DfD) are identified and the influence of each characteristic on the viability of a deconstruction is analysed. A literature review is conducted to assess the guideline of DfD and to identify relevant characteristics. These characteristics are then divided into the following categories: direct influence enabling deconstruction; influence on the ease of the process; and, influence on prolonging a building’s lifecycle. A number of questions are suggested for analysing each characteristic, and these can be employed in the development of a methodology for evaluating a building’s deconstruction potential. The identification of characteristics involved in the deconstruction guidelines may assist in the optimization of projects and the planning of deconstruction processes.

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Section: Literature Reviewmentioning

confidence: 99%

Analysis of Guidelines and Identification of Characteristics Influencing the Deconstruction Potential of Buildings

2018

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“…A parametric study was then carried out to understand the effect of concrete grades and stud collar sizes on the shear behaviour of the demountable shear connections. Rehman et al [9] conducted twelve full-scale push-off tests on demountable shear connectors in profiled slabs considering different concrete strengths, numbers of connectors per trough and different connector diameters. A reinforcement cage was introduced to prevent pre-mature toe failure of the composite slabs.…”

Section: Universitat Politècnica De Valènciamentioning

confidence: 99%

Experimental study on demountable shear connectors in profiled composite slabs

Yang

Lam

Dai

et al. 2018

Proceedings 12th International Conference on Advances in Steel-Concrete Composite Structures - ASCCS 2018

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This paper presents an experimental study on demountable shear connectors in profiled composite slabs. Overall, three groups of push-off tests were conducted to assess the shear capacity, stiffness and ductility of the shear connectors. In all the specimens, a pair of shear studs were used per trough and were bolted to each side of the flange of a loading beam. Different concrete strength, embedment height of the shear studs and reinforcement cage were considered. Particularly, a joint was made between the pair studs in two groups of specimens when casting and formed two completely separate slabs per half specimen, to evaluate the load transfer between the pair studs. The experimental results showed that the shear capacity and behavior of the demountable connectors in separate slabs and continuous slab were both similar to the welded connectors and could fulfill the 6mm minimum ductility requirement stated in Eurocode 4 if proper embedment height of connector was used. The shear capacities of the tested specimens were compared against the calculated results obtained from the equations used for welded shear connectors in Eurocode 4 and bolted connections in Eurocode 3. Generally, the Eurocodes prediction underestimated the shear capacities of the push-off specimens.

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“…Recent research has shown efforts by the scientific community directed towards understanding the behavior of non-welded connectors, as presented in the works of Rehman et al (2015) [5], Dai et al (2015) [6] and Pathirana et al (2015) [7]. Other recent works have also addressed the study of alternative connectors, developed with the use of materials well known to the construction industry, as may be observed in the research conducted by Barbosa (2016) [8].…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation on the structural behavior of truss shear connectors in composite steel-concrete beams

Barbosa

Bezerra

Chater

et al. 2019

Rev. IBRACON Estrut. Mater.

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The composite structures have great advantages in terms of structural and constructive aspects, with the shear connectors being decisive for obtaining the interaction between the structural elements and for the distribution of the stresses in the structure, taking advantage of the potentiality of each constituent material of the composite structure (steel and concrete). This work, through experimental studies, presents the development of a shear connector (Truss connector) proposed for use in a concrete-steel composite beam. The proposed connector is easy to implement and can serve as a viable alternative to the use of stud or U connectors. It was idealized a connector geometry that would provide low production cost, ease of execution, higher values of resistant load, efficiency as regards the relative sliding resistance between the metal profile and the concrete slab, as well as the efficiency regarding the resistance to the spacing of the slabs in relation to the metal profile (uplift). In order to evaluate the behavior of Truss connectors, 6 experimental models were constructed for push-out tests, 3 with 12.5 mm diameter Truss connectors and 3 with 19.0 mm diameter stud bolt connectors. The behavior of the models was investigated with respect to the loads of rupture, the transversal displacements between the concrete slabs and the relative vertical slide between the reinforced concrete slabs and the metallic profiles of the models. The results of the experimental analyzes provided an overview of the operation of the Truss and stud bolt connectors, with significant results that showed advantages of the Truss connector in relation to the stud connector considering the parameters analyzed in this work.

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Experimental study on demountable shear connectors in composite slabs with profiled decking

Cited by 71 publications

References 10 publications

Analysis of Guidelines and Identification of Characteristics Influencing the Deconstruction Potential of Buildings

Analysis of Guidelines and Identification of Characteristics Influencing the Deconstruction Potential of Buildings

Experimental study on demountable shear connectors in profiled composite slabs

Experimental evaluation on the structural behavior of truss shear connectors in composite steel-concrete beams

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