Slim‐floor construction using hollow‐core and composite decking systems

Lawson, Mark; Béguin, Pascal; Obiala, Renata; Braun, Matthias

doi:10.1002/stco.201510018

Cited by 18 publications

(18 citation statements)

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“…Composite steel-concrete beams and slabs are widely used throughout the world for building applications. Among composite solutions, slim floor beams have been popular and adopted in steel framed structures, particularly in Europe [1][2][3]. With this structural typology, the steel section is embedded within the thickness of the slab and the lower flange of the steel joist is specified wider than the top flange to provide a continuous support along the beam length for the floor formwork that could consist of either profiled sheeting or cellular slabs.…”

Section: Introductionmentioning

confidence: 99%

“…Over the last decades, the number of studies investigating slim floor systems has been increasing, with particular focus devoted at the development of shear connection typologies for efficient construction, for example, by varying the profile of the beam, the web opening for possible dowel actions and the reinforcement arrangement, e.g. [2,[11][12][13][14][15][16][17][18][19][20][21][22][23]. As occurred for other composite floor typologies [24], most of the research carried to date on slim floors has focused at its ultimate response and, despite the wide adoption of this solution, there are no specific European guidelines for this type of building floor [25].…”

Section: Introductionmentioning

confidence: 99%

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Service and Ultimate Behaviour of Slim Floor Beams: An Experimental Study

et al. 2019

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Slim floor systems represent an economical and competitive solution for building applications that combine the advantages of concrete floors, prefabricated steel sections and a shallow depth. The distinctive feature of this form of construction relies on the fact that the lower steel flange is wider than the top flange to provide a continuous support along the beam length for the slab formwork. The latter is usually specified in the form of either profiled sheeting or cellular slabs. In this structural typology, the steel section is embedded within the thickness of the slab.This paper presents an experimental study aimed at evaluating the service behaviour of slim floor beams induced by the time-dependent behaviour of the concrete and at establishing the possible influence of creep effects on their ultimate response. For this purpose, two slim floor samples were prepared in a simply-supported configuration. Their long-term deflections and deformations were monitored over time for about ten months, after which the specimens were tested to failure. The specimens possessed identical concrete and steel geometries. The shear connection was provided by transverse steel reinforcing bars installed within regularly spaced holes incorporated in the steel web. The samples were cast unpropped so that the self-weight of the wet concrete was carried by the steel member. The only difference between the two specimens consisted in the loading history specified over time. In particular, one slim floor sample was kept unloaded for the entire duration of the test to monitor the influence of shrinkage effects while the second specimen was subjected to a sustained load to evaluate the effects of both creep and shrinkage. The experimental data reported in this study provides insight into their long-term and ultimate response, and valuable benchmarking data for the calibration of numerical models and design procedures related to the serviceability and ultimate limit states of slim floor systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Service and Ultimate Behaviour of Slim Floor Beams: An Experimental Study

et al. 2019

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Section: Introductionmentioning

confidence: 99%

“…'Thor-beam' and 'Delta-beam' developed in Scandinavia [1] and the 'slimflor beam' by the Steel Construction Institute [2] are representative examples with this feature. These slim floor beams are generally used in conjunction with deep decks and hollow core slabs for 5 m to 9 m span [1][2][3]. Nardin et al [4,5] suggested a methodology that can determine the optimal locations of shear connectors by performing a test on several slim floor beam specimens.…”

Section: Introductionmentioning

confidence: 99%

Flexural Capacity of a New Composite Beam with Concrete-Infilled Tubular Lower Flange

Cho

Lee

Kim³

et al. 2017

Applied Sciences

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This paper proposes a new steel concrete composite beam that has a similar shape to the conventional steel wide flange beam, but whose lower flange has a tubular shape with infilled concrete. It has openings in the web for perfect integration between concrete and steel materials, and the tubular lower flange is reinforced with steel rebars to enhance its flexural strength. The bending capacity of the new composite beam was investigated by performing a two-point loading test on seven specimens, which can be categorized mainly into two types, non-composite and fully composite specimens. The load versus displacement curves were plotted for all the specimens and their failure modes were identified. Theoretical equations were proposed to estimate the flexural strength of the new composite beam members, and their accuracy was examined by comparing the predictions of the equations with the test results.

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“…Um dos principais objetivos dos sistemas de piso misto desenvolvidos recentemente é a redução da altura do pavimento. Alguns exemplos são as vigas Thor-beam e Delta-beam, desenvolvidas na Escandinávia [2], e o slimflor beam, desenvolvido pelo Instituto de Construção em Aço (Steel Construction Institute -SCI) [3]. Alguns desses sistemas utilizam steel decks ou lajes alveolares na construção do piso [2][3][4].…”

Section: Institute Of Steel Construction)unclassified

Desenvolvimento De Um Sistema De Piso Misto Com Viga Em Perfil Alveolar Assimétrico

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Slim‐floor construction using hollow‐core and composite decking systems

Cited by 18 publications

References 1 publication

Service and Ultimate Behaviour of Slim Floor Beams: An Experimental Study

Service and Ultimate Behaviour of Slim Floor Beams: An Experimental Study

Flexural Capacity of a New Composite Beam with Concrete-Infilled Tubular Lower Flange

Desenvolvimento De Um Sistema De Piso Misto Com Viga Em Perfil Alveolar Assimétrico

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