Preliminary research towards a semi-prefabricated LVL-concrete composite fl oor system for the Australasian market

Yeoh, D; Fragiacomo, M; Buchanan, A; Gerber, C

Preliminary research towards a semi-prefabricated LVL-concrete composite fl oor system for the Australasian market

Yeoh, D Fragiacomo, M Buchanan, A Gerber, C

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Publisher:: Engineers Media - Institution of Engineering Australia
Publication Type:: Journal Article
Citation:: Australian Journal of Structural Engineering, 2009, 9 (3), pp. 225 - 240
Issue Date:: 2009-01

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Field	Value	Language
dc.contributor.author	Yeoh, D	en_US
dc.contributor.author	Fragiacomo, M	en_US
dc.contributor.author	Buchanan, A	en_US
dc.contributor.author	Gerber, C	en_US
dc.date.issued	2009-01	en_US
dc.identifier.citation	Australian Journal of Structural Engineering, 2009, 9 (3), pp. 225 - 240	en_US
dc.identifier.issn	1328-7982	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9141
dc.description.abstract	The choice of the best floor solution has always been a key issue in the design and construction of multi-storey timber buildings. Strict performance requirements such as effective acoustic separation of inter-tenancy floors, thermal mass, fire resistance, limitation of defl ection, resistance to vibrations and effective diaphragm action are very hard to comply with if only timber is used. The main purpose of this paper is to present the preliminary and some ongoing research in the short- and long-term carried out mainly at the University of Canterbury, New Zealand, for the realisation of a semi-prefabricated laminated veneer lumber (LVL)-concrete composite floor system in both the local and Australasian market. The paper discusses a novel semi-prefabricated LVLconcrete composite system where panels made from LVL joists and plywood flooring are prefabricated off-site. Once the panels are lifted onto the supports and connected side-by-side, a concrete topping is cast-in-situ so as to form a continuous slab connecting all the panels. Composite action between the concrete topping and the panels is achieved using different types of connectors, such as various forms of notches cut from the LVL joists and reinforced with coach screws or toothed metal plates pressed in the LVL joists. After pointing out the advantages of the proposed system over traditional only-timber and only-concrete fl oor solutions, the paper describes push-out tests in the short-term on connections used in the LVL-concrete composite. Tests to failure of small LVL-concrete composite blocks (push-out tests) with different types and shapes of connection systems were performed at the University of Canterbury, New Zealand, and at the University of Technology Sydney, Australia.	en_US
dc.publisher	Engineers Media - Institution of Engineering Australia	en_US
dc.relation.ispartof	Australian Journal of Structural Engineering	en_US
dc.title	Preliminary research towards a semi-prefabricated LVL-concrete composite fl oor system for the Australasian market	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	9	en_US
utslib.for	0999 Other Engineering	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	1202 Building	en_US
utslib.for	1204 Engineering Design	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
utslib.copyright.status	closed_access
pubs.consider-herdc	true	en_US
pubs.issue	3	en_US
pubs.volume	9	en_US

Abstract:

The choice of the best floor solution has always been a key issue in the design and construction of multi-storey timber buildings. Strict performance requirements such as effective acoustic separation of inter-tenancy floors, thermal mass, fire resistance, limitation of defl ection, resistance to vibrations and effective diaphragm action are very hard to comply with if only timber is used. The main purpose of this paper is to present the preliminary and some ongoing research in the short- and long-term carried out mainly at the University of Canterbury, New Zealand, for the realisation of a semi-prefabricated laminated veneer lumber (LVL)-concrete composite floor system in both the local and Australasian market. The paper discusses a novel semi-prefabricated LVLconcrete composite system where panels made from LVL joists and plywood flooring are prefabricated off-site. Once the panels are lifted onto the supports and connected side-by-side, a concrete topping is cast-in-situ so as to form a continuous slab connecting all the panels. Composite action between the concrete topping and the panels is achieved using different types of connectors, such as various forms of notches cut from the LVL joists and reinforced with coach screws or toothed metal plates pressed in the LVL joists. After pointing out the advantages of the proposed system over traditional only-timber and only-concrete fl oor solutions, the paper describes push-out tests in the short-term on connections used in the LVL-concrete composite. Tests to failure of small LVL-concrete composite blocks (push-out tests) with different types and shapes of connection systems were performed at the University of Canterbury, New Zealand, and at the University of Technology Sydney, Australia.

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http://hdl.handle.net/10453/9141