Behaviour of Timber-concrete Composite Floor Systems

Yeoh, D; Fragiacomo, M; Ghafar, A; Buchanan, A; Deam, B; Crews, KI

Behaviour of Timber-concrete Composite Floor Systems

Yeoh, D Fragiacomo, M Ghafar, A Buchanan, A Deam, B Crews, KI

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Publisher:: The Meeting Planners
Publication Type:: Conference Proceeding
Citation:: Australasian Structural Engineering Conference 2008: Engaging with Structural Engineering, 2008, pp. 92 - 102
Issue Date:: 2008-01

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Field	Value	Language
dc.contributor.author	Yeoh, D	en_US
dc.contributor.author	Fragiacomo, M	en_US
dc.contributor.author	Ghafar, A	en_US
dc.contributor.author	Buchanan, A	en_US
dc.contributor.author	Deam, B	en_US
dc.contributor.author	Crews, KI https://orcid.org/0000-0003-1450-1423	en_US
dc.contributor.editor	Gad, E	en_US
dc.contributor.editor	Wong, B	en_US
dc.date	2008-06-26	en_US
dc.date.issued	2008-01	en_US
dc.identifier.citation	Australasian Structural Engineering Conference 2008: Engaging with Structural Engineering, 2008, pp. 92 - 102	en_US
dc.identifier.isbn	9781877040696	en_US
dc.identifier.uri	http://hdl.handle.net/10453/11005
dc.description.abstract	Timber-concrete composite (TCC) floor systems utilise composite action between a timber joist and a concrete topping to increase their span. Their overall structural performance is significantly influenced by the load-slip relationship, strength, stiffness and positions of the connectors providing the composite action. The relatively low elastic modulus of timber, however, may affect the dynamic (vibration) performance of medium to long-span TCC floors. Three broad areas are currently under investigation at the University of Canterbury: (1) the choice of the best type of connection: (2) the collapse behaviour under static (gravity) loads; and (3) the vibration susceptibility. This paper presents preliminary results of experimental tests used to characterise the connection systems as they are tested to failure under monotonic loads. Based on those outcomes, a semi-prefabricated composite floor system is proposed. The system is constructed from prefabricated panels made from timber joists and plywood sheets, and by a concrete slab cast-in-situ on top of the panels. Two different types of connection systems are shown to perform satisfactorily: notches cut from laminated veneer lumber (LVL) joists and reinforced with coach screws, and toothed metal plates pressed into LVL joists. Finally, an overview of the extensive experimental programme currently ongoing is provided.	en_US
dc.publisher	The Meeting Planners	en_US
dc.relation.ispartof	Australasian Structural Engineering Conference 2008: Engaging with Structural Engineering	en_US
dc.relation.ispartof	Australian Structural Engineering Conference	en_US
dc.title	Behaviour of Timber-concrete Composite Floor Systems	en_US
dc.type	Conference Proceeding
utslib.location	Melbourne, Australia	en_US
utslib.location.activity	Melbourne, Australia	en_US
utslib.for	0905 Civil Engineering	en_US
dc.location.activity	Melbourne, Australia	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.consider-herdc	false	en_US
pubs.place-of-publication	Melbourne, Australia	en_US
pubs.start-date	2008-06-26	en_US

Abstract:

Timber-concrete composite (TCC) floor systems utilise composite action between a timber joist and a concrete topping to increase their span. Their overall structural performance is significantly influenced by the load-slip relationship, strength, stiffness and positions of the connectors providing the composite action. The relatively low elastic modulus of timber, however, may affect the dynamic (vibration) performance of medium to long-span TCC floors. Three broad areas are currently under investigation at the University of Canterbury: (1) the choice of the best type of connection: (2) the collapse behaviour under static (gravity) loads; and (3) the vibration susceptibility. This paper presents preliminary results of experimental tests used to characterise the connection systems as they are tested to failure under monotonic loads. Based on those outcomes, a semi-prefabricated composite floor system is proposed. The system is constructed from prefabricated panels made from timber joists and plywood sheets, and by a concrete slab cast-in-situ on top of the panels. Two different types of connection systems are shown to perform satisfactorily: notches cut from laminated veneer lumber (LVL) joists and reinforced with coach screws, and toothed metal plates pressed into LVL joists. Finally, an overview of the extensive experimental programme currently ongoing is provided.

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http://hdl.handle.net/10453/11005